Nastran sealing
CFG nastran 5 sealing
*filter spot
*head
rbe3 1 0
*body 0
spring 6 1
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Description: Creates RBE3 elements for the head and CBUSH element for the body. The head elements project and connect to the nodes of the adjoining shell elements.
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Nastran bush
CFG nastran 6 bush
*filter spot
*head
rigidlink 1 1
*body 0
spring 6 1
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Description: Creates RBE2 elements for the head and CBUSH element for the body. The head elements project and connect to the nodes of the adjoining shell elements.
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Nastran rbe3 (load transfer)
CFG nastran 31 rbe3 (load transfer)
*filter spot
*style mpc 1
*head
*body 0
rbe3 1 1 dofs=123
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Description: Creates RBE3 elements for the body. The degrees of freedom are constrained in the x, y, z for the dependant nodes.
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Nastran clip
CFG nastran 50 clip
*filter bolt
*style bolt 1
*head
*body 0
rigidlink 1 2
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Description: Creates a single RBE2 element for the body. The element projects and connect to the nodes of the adjoining shell elements which form the hole and also the nodes which form the washer layer. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (washer 1) cbar
CFG nastran 51 bolt (washer 1) cbar
*filter bolt
*style bolt 0
*head
rigidlink 1 12
*body 0
bar2 1 1
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Description: Creates RBE2 elements for the head and CBAR element for the body. The head elements project and connect to the nodes of the adjoining shell elements which form the hole and also the second row of nodes which form the washer layer. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (general)
CFG nastran 52 bolt (general)
*filter bolt
*style bolt 0
*head
rigidlink 1 1
*body 0
rigid 1 1
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Description: Creates RBE2 elements for the head and the body. The head elements project and connect to the nodes of the adjoining shell elements which form the hole. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (CBAR)
CFG nastran 53 bolt (CBAR)
*filter bolt
*style bolt 0
*head
rigid 1 1
*body 0
bar2 1 1
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Description: Creates RBE2 elements for the head and CBAR element for the body. The head elements project and connect to the nodes of the adjoining shell elements which form the hole. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (spider)
CFG nastran 54 bolt (spider)
*filter bolt
*style bolt 1
*head
*body 0
rigid 1 1
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Description: Creates a many individual RBE2 elements. The element projects and connect to the nodes of the adjoining shell elements which form the hole, the RBE2 elements are joined at the midpoint of the bolted connection. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (washer 2)
CFG nastran 55 bolt (washer 2)
*filter bolt
*style bolt 0
*head
rigidlink 1 1
rigidlink 1 2
*body 0
rigid 1 1
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Description: Creates RBE2 elements for the head and the body. There are two individual RBE2 elements at the head of the connection, one to connect to the inner row of nodes, the other to connect to the washer layer nodes. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (washer 2 alt)
CFG nastran 56 bolt (washer 2 alt)
*filter bolt
*style bolt 0
*head
rigidlink 1 1
rigidlink 1 3
*body 0
rigid 1 1
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Description: Creates RBE2 elements for the head and the body. There are two individual RBE2 elements at the head of the connection, one to connect to the inner row of nodes, the other to connect to the washer layer nodes. The RBE2 head element that connects to the washer layer nodes only connects to every other node on the washer layer. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (washer 1)
CFG nastran 57 bolt (washer 1)
*filter bolt
*style bolt 0
*head
rigidlink 1 12
*body 0
rigid 1 1
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Description: Creates RBE2 elements for the head and body. The head elements project and connect to the nodes of the adjoining shell elements which form the hole and also the second row of nodes which form the washer layer. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (washer 1 alt)
CFG nastran 58 bolt (washer 1 alt)
*filter bolt
*style bolt 0
*head
rigidlink 1 13
*body 0
rigid 1 1
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Description: Creates RBE2 elements for the head and body. The head elements project and connect to the nodes of the adjoining shell elements which form the hole and also the second row of nodes which form the washer layer. The head only connects to every other node on the washer layer. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran hinge
CFG nastran 59 hinge
*filter bolt
*style bolt 0
*head
rigidlink 1 1
*body 0
rigid 1 1 dofs=12356
*post prop_hinge.tcl
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Description: Creates RBE2 elements for the head and the body. The head elements project and connect to the nodes of the adjoining shell elements which form the hole. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer. The degrees of freedom are constrained in the x, y, z, rot x, rot z for the dependant nodes.
This realization also uses the prop_hinge.tcl property script.
This script is called while creation of HINGE– custom config welds in the connector bolts panel. This script performs the tasks when the Systems option is active in the connector Bolt panel (such as “Single System”,”1- System per layer” or 2- Systems per layer).
This Script Assigns both reference and analysis systems ID to weld element nodes of each Bolt (Hinge) created during realization process.
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Nastran bolt (cylinder rigid)
CFG nastran 60 bolt (cylinder rigid)
*filter bolt
*style bolt 4
*head
rigidlink 1 1
*body 0
rigid 1 1
*post prop_cylinder.tcl
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Description: Creates an RBE2 element for the body as well as for the head elements.
See the mesh independent realization methods in the Bolt panel for further information on cylinder-type bolts.
This realization uses the prop_cylinder.tcl property script.
This script is used while creating bolt (cylinder rigid) and bolt (cylinder bar) in the Bolt panel (Abaqus, Nastran, OptiStuct). It organizes the realized bolt elements into the respective components based upon the *HEAD and the *BODY information of the bolt:
| • | A collector with the name Rigid_M<diameter> is created. This component contains all of the rigid head elements and the rigid body elements, if available. |
| • | A collector with the name Beam_M<diameter> is created. This component contains all of the bar2 head elements, if available. This component then gets a property Beam_M assigned (*BEAMSECTION or PBEAM). |
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Nastran bolt (cylinder bar)
CFG nastran 61 bolt (cylinder bar)
*filter bolt
*style bolt 4
*head
rigidlink 1 1
*body 0
bar2 2 1
*post prop_cylinder.tcl
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Description: Creates a CBEAM element for the body and RBE2 elements for the head elements.
See the mesh independent realization methods in the Bolt panel for further information on cylinder-type bolts.
This realization uses the prop_cylinder.tcl property script.
This script is used while creating bolt (cylinder rigid) and bolt (cylinder bar) in the Bolt panel (Abaqus, Nastran, OptiStuct). It organizes the realized bolt elements into the respective components based upon the *HEAD and the *BODY information of the bolt:
| • | A collector with the name Rigid_M<diameter> is created. This component contains all of the rigid head elements and the rigid body elements, if available. |
| • | A collector with the name Beam_M<diameter> is created. This component contains all of the bar2 head elements, if available. This component then gets a property Beam_M assigned (*BEAMSECTION or PBEAM). |
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Nastran acm (equivalenced-(T1+T2)/2)
CFG nastran 69 acm (equivalenced-(T1+T2)/2)
*filter spot
*style acm 1
*head
rbe3 1 0
*body 0
hex8 1 1
*post prop_nastran_acm.tcl
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Description: Creates hexa element with RBE3 elements projecting and connecting to the surrounding shell elements. This realization uses the shell thickness to calculate the hexa offset from the shell elements. In the case where the model is a 3T connection, the acm (equivalenced-(T1+T2)/2) realization will join the hexa elements.
This realization also uses the prop_nastran_acm.tcl property script.
This script is used in the Nastran and OptiStruct user profiles during the creation of the following configurations:
| • | acm – equivalence/detached –(T1+T2)/2, and shell gap custom config welds in the Spot panel, |
| • | seam hexa adhesive and seam hexa (RBE2-RBE3) in the Seam panel, and |
| • | Area adhesives in the Area panel. |
The script performs the following tasks:
| 1. | Organizes the realized Solid Hexa weld elements created during realization process into components with names based on the realization, such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap.
Components and the connected RBE’s created as the *HEAD type are organized into components using similar naming, such as rbe3_spot_acm_detached, rbe3_seam_hexa_adhesive, or rbe3_area_hexa_adhesive. |
| 2. | This script creates property collectors, again using names based on the realization such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap. |
| • | These property collectors are created with the PSOLID card associated with them, and are referenced in the above created components containing the Solid Hexa weld elements. |
| 3. | In addition, this script also updates the weights of any RBE3 that is almost zero, because weight factors close to 0.0 cause Nastran and OptiStruct solvers to generate incorrect results. |
| Note: | New components and properties will only be created if they do not already exist; otherwise the existing components and properties are used. For this reason, comps/props will not always follow the naming conventions given here, because preexisting ones might already have different names. |
Also, when creating realizations with a mid-thickness option, the naming conventions include the presence of the mid-thickness. For example, when creating a hexa (RBE2-RBE3) configuration using a mid-thickness option:
| • | Solid elements will be organized into a Component named solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE3 elements will be organized into a Component named rbe3_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE2 elements will be organized into a Component named rbe2_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Properties will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Materials will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
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Nastran acm (detached-(T1+T2)/2)
CFG nastran 70 acm (detached-(T1+T2)/2)
*filter spot
*style acm 2
*head
rbe3 1 0
*body 1
hex8 1 1
*post prop_nastran_acm.tcl
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Description: Creates hexa element with RBE3 elements projecting and connecting to the surrounding shell elements. This realization uses the shell thickness to calculate the hexa offset from the shell elements. In the case where the model is a 3T connection, the acm (detached-(T1+T2)/2) realization will not join the hexa elements.
This realization also uses the prop_nastran_acm.tcl property script.
This script is used in the Nastran and OptiStruct user profiles during the creation of the following configurations:
| • | acm – equivalence/detached –(T1+T2)/2, and shell gap custom config welds in the Spot panel, |
| • | seam hexa adhesive and seam hexa (RBE2-RBE3) in the Seam panel, and |
| • | Area adhesives in the Area panel. |
The script performs the following tasks:
| 1. | Organizes the realized Solid Hexa weld elements created during realization process into components with names based on the realization, such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap.
Components and the connected RBE’s created as the *HEAD type are organized into components using similar naming, such as rbe3_spot_acm_detached, rbe3_seam_hexa_adhesive, or rbe3_area_hexa_adhesive. |
| 2. | This script creates property collectors, again using names based on the realization such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap. |
| • | These property collectors are created with the PSOLID card associated with them, and are referenced in the above created components containing the Solid Hexa weld elements. |
| 3. | In addition, this script also updates the weights of any RBE3 that is almost zero, because weight factors close to 0.0 cause Nastran and OptiStruct solvers to generate incorrect results. |
| Note: | New components and properties will only be created if they do not already exist; otherwise the existing components and properties are used. For this reason, comps/props will not always follow the naming conventions given here, because preexisting ones might already have different names. |
Also, when creating realizations with a mid-thickness option, the naming conventions include the presence of the mid-thickness. For example, when creating a hexa (RBE2-RBE3) configuration using a mid-thickness option:
| • | Solid elements will be organized into a Component named solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE3 elements will be organized into a Component named rbe3_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE2 elements will be organized into a Component named rbe2_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Properties will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Materials will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
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Nastran acm (shell gap)
CFG nastran 71 acm (shell gap)
*filter spot
*style acm 3
*head
rbe3 1 0
*body 0
hex8 1 1
*post prop_nastran_acm.tcl
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Description: Creates hexa element with RBE3 elements projecting and connecting to the surrounding shell elements. This realization does not use the shell thickness to calculate the hexa offset, therefore the hexa will project and be touching the shell elements.
This realization also uses the prop_nastran_acm.tcl property script.
This script is used in the Nastran and OptiStruct user profiles during the creation of the following configurations:
| • | acm – equivalence/detached –(T1+T2)/2, and shell gap custom config welds in the Spot panel, |
| • | seam hexa adhesive and seam hexa (RBE2-RBE3) in the Seam panel, and |
| • | Area adhesives in the Area panel. |
The script performs the following tasks:
| 1. | Organizes the realized Solid Hexa weld elements created during realization process into components with names based on the realization, such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap.
Components and the connected RBE’s created as the *HEAD type are organized into components using similar naming, such as rbe3_spot_acm_detached, rbe3_seam_hexa_adhesive, or rbe3_area_hexa_adhesive. |
| 2. | This script creates property collectors, again using names based on the realization such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap. |
| • | These property collectors are created with the PSOLID card associated with them, and are referenced in the above created components containing the Solid Hexa weld elements. |
| 3. | In addition, this script also updates the weights of any RBE3 that is almost zero, because weight factors close to 0.0 cause Nastran and OptiStruct solvers to generate incorrect results. |
| Note: | New components and properties will only be created if they do not already exist; otherwise the existing components and properties are used. For this reason, comps/props will not always follow the naming conventions given here, because preexisting ones might already have different names. |
Also, when creating realizations with a mid-thickness option, the naming conventions include the presence of the mid-thickness. For example, when creating a hexa (RBE2-RBE3) configuration using a mid-thickness option:
| • | Solid elements will be organized into a Component named solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE3 elements will be organized into a Component named rbe3_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE2 elements will be organized into a Component named rbe2_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Properties will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Materials will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
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Nastran acm (shell gap + coating)
CFG nastran 72 acm (shell gap + coating)
*filter spot
*style acm 4
*body 0
hex8 1 1
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Description: This realization creates one hexa cluster per connector and realizes a node to node connection to the linked shell meshes by adjusting it (shell coating). Different patterns are available. This is driven by the number of hexas. The appearance can be influenced via the diameter and the washer layer activation.
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Nastran pie (rigid spider)
CFG nastran 73 pie (rigid spider)
*filter spot
*head
rigidlink 1 4
*body 0
rigid 1 1
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Description: This realization prepares a circled shell mesh from a certain number of segments for each link, so the mesh is adjusted to a rigid element created with the independent node centered in the circular arranged dependent nodes. The independent nodes themselves are connected by an additional rigid element.
Different numbers of elements lead to a different pattern. In addition, the appearance can be influenced via the diameter and the washer layer activation.
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Nastran acm (general)
CFG nastran 74 acm (general)
*filter spot
*style acm 3
*head
rbe3 1 0 dofs=123
*body 0
hex8 1 1
*post prop_nastran_acm.tcl
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Decription: This realization type consolidates several ACM definitions into one general, flexible ACM definition. Besides mid thickness, constant thickness, and maintain gaps, the definition of several coats with different hexa pattern is available. Each hexa node pointing towards the link elements is connected to the links by using RBE3 elements. The independent nodes get different weighting factors. See the formulas in the prop_nastran_acm.tcl property script.
The realization also uses the prop_nastran_acm.tcl property script.
The script performs the following tasks:
| 1. | Organizes the solids inside components with naming conventions based on the thickness option. For example: solid_spot_acm_shell_gap, solid_spot_acm_const_thick_2.0, and so on. |
| 2. | Organizes the RBE3s inside components with naming conventions based on the thickness option. For example: rbe3_spot_acm_shell_gap, rbe3_spot_acm_const_thick_2.0, and so on. |
| 3. | Creates materials with names solid_spot_acm_shell_gap, solid_spot_acm_const_thick_2.0, and so on. |
| 4. | Creates properties which are referenced from above solid components with the PSOLID card image and names. For example: solid_spot_acm_shell_gap, solid_spot_acm_const_thick_2.0, and so on. |
| Note: | New components, properties, and materials will only be created if there are not any components, properties and materials with the same names that already exist; otherwise the existing components and properties are used. |
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Nastran penta (mig+L)
CFG nastran 76 penta (mig + L)
*filter spot
*style mig 1
*head
rbe3 1 0
*body 0
penta6 1 1
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Description: This realization supports Lap-joints and creates PENTA element for the body. Surrounding shell/solid elements are projected and connected with RBE3 elements. This realization supports the creation of PENTA elements on one side or on both sides of the joint. A fitted/equilateral option is also provided for the PENTA creation.
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Nastran penta (mig+T)
CFG nastran 77 penta (mig + T)
*filter spot
*style mig 2
*head
rbe3 1 0
*body 0
penta6 1 1
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Description: This realization supports T-joints and creates PENTA element for the body. Surrounding shell/solid elements are projected and connected with RBE3 elements. This realization supports the creation of PENTA elements on one side or on both sides of the joint, and provides a right-angled option.
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Nastran penta (mig+B)
CFG nastran 78 penta (mig + B)
*filter spot
*style mig 3
*head
rbe3 1 0
*body 0
penta6 1 1
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Description: This realization supports Butt-joints and creates PENTA element for the body. Surrounding shell/solid elements are projected and connected with RBE3 elements. This realization supports the creation of PENTA elements on one side or on both sides of the joint. The non-normal option needs to be ON/Active for this realization.
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Nastran cweld (GA-GB PARTPAT)
CFG nastran 80 cweld (GA-GB PARTPAT)
*filter spot
*head
*body 0
rod 4 1
*post prop_cweld.tcl
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Description: Creates 1D CWELD element via GA-GB PARTPAT.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GS PARTPAT)
CFG nastran 81 cweld (GS PARTPAT)
*filter spot
*head
*body 0
mass 11 0
*post prop_cweld.tcl
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Description: Creates 0D CWELD element via GS PARTPAT.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GA-GB ELPAT)
CFG nastran 82 cweld (GA-GB ELPAT)
*filter spot
*head
*body 0
rod 4 1
*post prop_cweld.tcl
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Description: Creates 1D CWELD element via GA-GB ELPAT.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GS ELPAT)
CFG nastran 83 cweld (GS ELPAT)
*filter spot
*head
*body 0
mass 11 0
*post prop_cweld.tcl
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Description: Creates 0D CWELD element via GS ELPAT.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GA-GB ELEMID)
CFG nastran 84 cweld (GA-GB ELEMID)
*filter spot
*head
*body 0
rod 4 1
*post prop_cweld.tcl
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Description: Creates 1D CWELD element via GA-GB ELEMID.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GS ELEMID)
CFG nastran 85 cweld (GS ELEMID)
*filter spot
*head
*body 0
mass 11 0
*post prop_cweld.tcl
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Description: Creates 0D CWELD element via GS ELEMID.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GA-GB GRIDID)
CFG nastran 86 cweld (GA-GB GRIDID)
*filter spot
*head
*body 0
rod 4 1
*post prop_cweld.tcl
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Description: Creates 1D CWELD element via GA-GB GRIDID.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GS GRIDID)
CFG nastran 87 cweld (GS GRIDID)
*filter spot
*head
*body 0
mass 11 0
*post prop_cweld.tcl
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Description: Creates 0D CWELD element via GS GRIDID.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cweld (GA-GB ALIGN)
CFG nastran 88 cweld (GA-GB ALIGN)
*filter spot
*head
*body 0
rod 4 1
*post prop_cweld.tcl
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Description: Creates 1D CWELD element via GA-GB ALIGN.
This realization also uses the prop_cweld.tcl property script.
This script is called while creation of all the CWELD GA-GB and GS– custom config welds in the Spot panel. Theses include PARTPAT, ELPAT, ELEMID, GRIDID, ALIGN. It performs the following tasks:
| • | Assigns the attributes to the CWELD weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types PARTPAT, ELPAT, ELEMID, GRIDID or ALIGN. |
| • | Creates the property collector with the name prop_<id> with the PWELD card associated with it. This property is referenced to the CWELD element created during realization. |
| • | This script also updates the weld radius value in the CWELD card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called if the CWELD GA-GB and GS– custom config welds and shell gap custom config welds across Nastran and OptiStruct user profiles |
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Nastran rbe3-celas1-rbe3
CFG nastran 89 rbe3-celas1-rbe3
*filter spot
*head
rbe3 1 0 dofs=123456
*body 0
spring 1 0
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Description: Creates RBE3 element for the head and zero length CELAS1 element for the body. The head elements project and connect to the nodes of the adjoining shell elements. The degrees of freedom are constrained in the x, y, z, rot x, rot y, rot z for the dependant nodes.
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Nastran seam-quad (angled+capped+L)
CFG nastran 101 seam-quad (angled+capped+L)
*filter seam
*style quad 4
*head
*body 0
quad4 1 1
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Description: Creates a quad row with tria caps at the seam ends. In addition, a certain pure quad element pattern is created around the seam elements (shown here in red). These elements normally get imprinted into the shell links. The exact geometry of the seam can be influenced by certain attributes in the Seam panel.
This realization is mainly intended to be used for lap welds. You can revert the direction of quad seam connectors during the next realization by activating the reverse direction check box in the Seam panel.
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Nastran seam-quad (angled+capped+T)
CFG nastran 102 seam-quad (angled+capped+T)
*filter seam
*style quad 5
*head
*body 0
quad4 1 1
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Description: Creates a quad row with tria caps at the seam ends. In addition, a certain pure quad element pattern is created around the seam elements (shown here in red). These elements normally get imprinted into the shell links. The exact geometry of the seam can be influenced by certain attributes in the Seam panel.
This realization is mainly intended to be used for lap welds. You can revert the direction of quad seam connectors during the next realization by activating the reverse direction check box in the Seam panel.
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Nastran seam-quad (vertical+angled)
CFG nastran 103 seam-quad (vertical+angled)
*filter seam
*style quad 1
*head
*body 0
quad4 1 1
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Description: Creates two quad rows--the first one perpendicular to the opposite shell link, and the second one with a certain angle to the first one. In addition, a certain pure quad element pattern is created around the seam elements (shown here in red). These elements normally get imprinted into the shell links. The exact geometry of the seam can be influenced by the angle value.
This realization is can be used for both lap- and T-welds.
| Note: | You can revert the direction of quad seam connectors during the next realization by activating the reverse direction check box in the Seam panel. |
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Nastran seam-quad (angled)
CFG nastran 104 seam-quad (angled)
*filter seam
*style quad 2
*head
*body 0
quad4 1 1
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Description: Creates one quad row under a certain angle. The angle is measured between the quad row and the perpendicular projection from the free edge to the opposite shell link. In addition, a certain pure quad element pattern is created around the seam elements (shown here in red). These elements normally get imprinted into the shell links. The exact geometry of the seam can be influenced by the angle value.
This realization is can be used for both lap- and T-welds.
| Note: | You can revert the direction of quad seam connectors during the next realization by activating the reverse direction check box in the Seam panel. |
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Nastran penta (mig)
CFG nastran 105 penta (mig)
*filter seam
*style continuous 3
*head
rbe3 1 0
*body 0
penta6 1 1
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Description: Creates penta elements with RBE3 elements projecting and connecting to the surrounding shell elements. This realization supports many different use cases, including T-joint, angled T-joint, lap joint and butt joint.
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Nastran hexa (adhesive)
CFG nastran 106 hexa (adhesive)
*filter seam
*style continuous 3
*head
rbe3 1 0
rigid 1 0
*body 0
hex8 1 1
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Description: Creates a row of hexa elements for the body and numerous RBE2/RBE3 elements for the head. The head elements project and connect to the nodes of the adjoining shell elements. If there is a direct normal project then an RBE2 elements will be used, if there are only non-normal projections then RBE3 elements will be created. The hexa elements are projected so that they touch the shell elements of the connecting components.
This realization also uses the prop_nastran_acm.tcl property script.
This script is used in the Nastran and OptiStruct user profiles during the creation of the following configurations:
| • | acm – equivalence/detached –(T1+T2)/2, and shell gap custom config welds in the Spot panel, |
| • | seam hexa adhesive and seam hexa (RBE2-RBE3) in the Seam panel, and |
| • | Area adhesives in the Area panel. |
The script performs the following tasks:
| 1. | Organizes the realized Solid Hexa weld elements created during realization process into components with names based on the realization, such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap.
Components and the connected RBE’s created as the *HEAD type are organized into components using similar naming, such as rbe3_spot_acm_detached, rbe3_seam_hexa_adhesive, or rbe3_area_hexa_adhesive. |
| 2. | This script creates property collectors, again using names based on the realization such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap. |
| • | These property collectors are created with the PSOLID card associated with them, and are referenced in the above created components containing the Solid Hexa weld elements. |
| 3. | In addition, this script also updates the weights of any RBE3 that is almost zero, because weight factors close to 0.0 cause Nastran and OptiStruct solvers to generate incorrect results. |
| Note: | New components and properties will only be created if they do not already exist; otherwise the existing components and properties are used. For this reason, comps/props will not always follow the naming conventions given here, because preexisting ones might already have different names. |
Also, when creating realizations with a mid-thickness option, the naming conventions include the presence of the mid-thickness. For example, when creating a hexa (RBE2-RBE3) configuration using a mid-thickness option:
| • | Solid elements will be organized into a Component named solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE3 elements will be organized into a Component named rbe3_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE2 elements will be organized into a Component named rbe2_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Properties will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Materials will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
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Nastran cfast_elem (GA-GB)
CFG nastran 107 cfast_elem (GA-GB)
*filter spot
*head
*body 0
rod 7 1
*post prop_opt_nas_cfast.tcl
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Description: Creates 1D CFAST element of type ELEM.
This realization also uses the prop_opt_nas_cfast.tcl property script.
This script is called while creation of all the CFAST GA-GB and GS– custom config welds in the Spot panel. Theses include ELEM, and PROP. It performs the following tasks:
| • | Assigns the attributes to the CFAST weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types ELEM or PROP. |
| • | Creates the property collector with the name PFAST_<diameter> with the PFAST card associated with it. This property is referenced to the CFAST element created during realization. |
| • | This script also updates the weld diameter value in the CFAST card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called for the CFAST GA-GB and GS– custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cfast_elem (GS)
CFG nastran 108 cfast_elem (GS)
*filter spot
*head
*body 0
mass 23 0
*post prop_opt_nas_cfast.tcl
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Description: Creates 0D CFAST element of type ELEM.
This realization also uses the prop_opt_nas_cfast.tcl property script.
This script is called while creation of all the CFAST GA-GB and GS– custom config welds in the Spot panel. Theses include ELEM, and PROP. It performs the following tasks:
| • | Assigns the attributes to the CFAST weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types ELEM or PROP. |
| • | Creates the property collector with the name PFAST_<diameter> with the PFAST card associated with it. This property is referenced to the CFAST element created during realization. |
| • | This script also updates the weld diameter value in the CFAST card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. |
| Note: | This script is called for the CFAST GA-GB and GS– custom config welds across Nastran and OptiStruct user profiles |
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Nastran cfast_prop (GA-GB)
CFG nastran 109 cfast_prop (GA-GB)
*filter spot
*head
*body 0
rod 7 1
*post prop_opt_nas_cfast.tcl
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Description: Creates 1D CFAST element of type PROP.
This realization also uses the prop_opt_nas_cfast.tcl property script.
This script is called while creation of all the CFAST GA-GB and GS– custom config welds in the Spot panel. Theses include ELEM, and PROP. It performs the following tasks:
| • | Assigns the attributes to the CFAST weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types ELEM or PROP. |
| • | Creates the property collector with the name PFAST_<diameter> with the PFAST card associated with it. This property is referenced to the CFAST element created during realization. |
| • | This script also updates the weld diameter value in the CFAST card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. This script is called for the CFAST GA-GB and GS– custom config welds across Nastran and OptiStruct user profiles. |
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Nastran cfast_prop (GS)
CFG nastran 110 cfast_prop (GS)
*filter spot
*head
*body 0
mass 23 0
*post prop_opt_nas_cfast.tcl
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Description: Creates 0D CFAST element of type PROP.
This realization also uses the prop_opt_nas_cfast.tcl property script.
This script is called while creation of all the CFAST GA-GB and GS– custom config welds in the Spot panel. Theses include ELEM, and PROP. It performs the following tasks:
| • | Assigns the attributes to the CFAST weld element created during the realization process, which is either a rod element [GA-GB] or mass Element [GS] of the types ELEM or PROP. |
| • | Creates the property collector with the name PFAST_<diameter> with the PFAST card associated with it. This property is referenced to the CFAST element created during realization. |
| • | This script also updates the weld diameter value in the CFAST card. The diameter value is either defined by you on the Spot panel, or is taken from the dvst (diameter versus thickness) file. This script is called for the CFAST GA-GB and GS– custom config welds across Nastran and OptiStruct user profiles. |
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Nastran HILOCK
CFG nastran 111 HILOCK
*filter spot
*style fastener 1
*head
*bodyext 0
bar2 1 1
weld 1 1 dofs=1456
*body 0
spring 6 0 dofs=2356
bar2 1 1
weld 1 1 dofs=156
spring 6 0 dofs=2356
*post prop_opt_nas_hilock.tcl
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Description: Creates 1D element construct existing out of RBAR, CBAR and CBUSH elements. The outer extensions represent the thicknesses of the outer shell elements. The inner nodes of the RBAR element are connected to the shell elements whereas the inner nodes of the CBAR elements are coincident to the shell nodes only. Between the appropriate connected and coincident nodes CBUSHes are created. Each outer node connects one CBAR and one RBAR. Each HILOCK connection gets an own coordinate system which z-axis is collinear to the HILOCK direction. All affected nodes are assigned to this coordinate system. This coordinate system is taken into account for the DOF definition of the CBAR elements, for the stiffness calculation of the CBUSH elements and for the DOF of the node constraint.
This realization uses the shell properties and materials (PSHELL or PCOMP) and the HILOCK material you select to calculate the exact position of the outer nodes and the stiffness of the PBUSH elements.
This realization also uses the prop_opt_nas_hilock.tcl property script.
This script is used while creation of HILOCK custom config welds in the Spot panel from the Nastran and OptiStruct user profile. It does the following tasks.
| 1. | Organizes the realized 1D weld elements (RBAR, CBAR, CBUSH) created during realization process into a component named HiLock components. |
| 2. | This script will create the following property collectors: |
| • | HiLock_PBAR_<diameter>: This property collector is created with the PBAR card associated with it. The RBAR elements reference to this property. The attributes are calculated depending on the used diameter in the Spot panel during realization. |
| • | HiLock_PBUSH_<translational stiffness>_<rotational stiffness>: These property collectors are created with the PBUSH card associated with them. The CBUSH elements reference to this property. The attributes are calculated depending on the HILOCK material you select and the properties and materials of the connected shells (PSHELL and/or PCOMP). |
| 3. | This script will create the following load collector: |
| • | HiLock_SPC6: This load collector is created and the SPCs, which are created for each HiLock will be moved into this collector. |
| 4. | This script will create the following system collector: |
| • | HiLock: This system collector is created and the systems created during the realizations will be moved into this collector. If the system collector exists already the new created systems will be moved into the same collector. |
| 5. | If a HiLock material is not chosen, a default material is created: |
| • | HiLock_MAT1: This material will be assigned to PBAR cards, and can be found in the following folder of the installation directory: [hm_scripts_dir]/connectors/HiLock_Mats. |
The predefined values are:
set E 1.8e+07
set G 4.7e+04
set NU 0.330
set RHO 8.9e-09
set A 1.7e-05.
| Note: | This script is called if the realization CFG nastran 111 HILOCK or CFG optistruct 111 HILOCK is used. |
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For a more detailed examination of HiLock realization, consult the topic for Special Realization Types.
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Nastran clip (washer nodes)
CFG nastran 112 clip (washer nodes)
*filter bolt
*style bolt 12
*head
*body 0
rigidlink 1 1
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Description: Creates a single RBE2 element for the body. The element projects and connects to the nodes which form the washer layer. The connector location can either be on the edge of the hole, center of the hole, midpoint in between the two holes or on the second row of nodes which form the washer layer.
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Nastran bolt (step hole)
CFG nastran 114 bolt (step hole)
*filter bolt
*style bolt 6
*head
rigidlink 1 1
*body 0
bar2 1 1
*post prop_stepboltholes.tcl
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Description: This realization creates a CBAR element for the bolt shaft, and connects to the solids' nodes with numerous RBE2 based on the given bolt/hole parameters. It also, connects two solids through holes, or it connects one solid through a hole with a solid blind hole.
This realization uses the prop_stepboltholes.tcl property script.
The script performs the following tasks:
| 1. | Organizes the CBAR elements into a component with the name HM_Bolt_CBAR. |
| 2. | Organizes the RBE2 elements into a component with the name HM_Bolt_RBE2. |
| 3. | Creates a property with the name HM_PBAR and assigns it the PBAR card image. |
| Note: | New components and properties will only be created if their are not any components and properties with the same names that already exist; otherwise the existing components and properties are used. |
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Nastran bolt (threaded step hole)
CFG nastran 115 bolt (threaded step hole)
*filter bolt
*style bolt 7
*head
rigidlink 1 1
*body 0
bar2 1 1
*post prop_stepboltholes.tcl
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Description: Connects two solids through holes or connects one solid through a hole with a solid blind hole. A thread length can be defined to define the dimensions of the rigid elements connecting the bolt shaft models as a bar.
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Nastran adhesive-hemmings
CFG nastran 116 adhesive-hemmings
*filter area
*style adhesive 3
*head
rbe3 1 0
*body 1
hex8 1 1
rigid 1 0
*post prop_nastran_acm.tcl
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Description: This realization type is used for modeling roll hemmings, where the outer shell is bent around the inner shell. The inner shell is connected to the outer shell on one side with simple hexa adhesive, and the other side is connected with RBE2 elements. A definable orientation node decides which side the hexa adhesive should be used. This seam realization type is capable of connecting three layers that contains two components.
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Nastran penta continuous (mig+L)
CFG nastran 117 penta (mig + L)
*filter seam
*style continuous_mig 1
*head
rbe3 1 0
*body 0
penta6 1 1
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Description: This realization supports Lap-joints and creates PENTA element for the body. Surrounding shell/solid elements are projected and connected with RBE3 elements. This realization supports the creation of PENTA elements on one side or on both sides of the joint, and provides a fitted/equilateral option for the PENTA creation.
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Nastran penta continuous (mig+T)
CFG nastran 118 penta (mig + T)
*filter seam
*style continuous_mig 2
*head
rbe3 1 0
*body 0
penta6 1 1
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Description: This realization supports T-joints and creates PENTA element for the body. Surrounding shell/solid elements are projected and connected with RBE3 elements. This realization supports the creation of PENTA elements on one side or on both sides of the joint, and provides a right-angled option.
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Nastran penta continuous (mig+B)
CFG nastran 119 penta (mig + B)
*filter seam
*style continuous_mig 3
*head
rbe3 1 0
*body 0
penta6 1 1
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Description: This realization supports Butt-joints and creates PENTA element for the body. Surrounding shell/solid elements are projected and connected with RBE3 elements. This realization supports the creation of PENTA elements on one side or on both sides of the joint.
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Nastran wagonwheel
CFG nastran 120 wagonwheel
*filter bolt
*style bolt 0
*head
rbe3 1 0
*body 0
rigid 1 1
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Description: This realization creates RBE2 elements for the body, and projects and connects to the hole edge nodes with RBE3 elements.
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Nastran adhesives
CFG nastran 121 adhesives
*filter area
*style adhesive 1
*head
rbe3 1 0
rigid 1 0
*body 1
hex8 1 1
penta6 1 1
*post prop_nastran_acm.tcl
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Description:
This realization also uses the prop_nastran_acm.tcl property script.
This script is used in the Nastran and OptiStruct user profiles during the creation of the following configurations:
| • | acm – equivalence/detached –(T1+T2)/2, and shell gap custom config welds in the Spot panel, |
| • | seam hexa adhesive and seam hexa (RBE2-RBE3) in the Seam panel, and |
| • | Area adhesives in the Area panel. |
The script performs the following tasks:
| 1. | Organizes the realized Solid Hexa weld elements created during realization process into components with names based on the realization, such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap.
Components and the connected RBE’s created as the *HEAD type are organized into components using similar naming, such as rbe3_spot_acm_detached, rbe3_seam_hexa_adhesive, or rbe3_area_hexa_adhesive. |
| 2. | This script creates property collectors, again using names based on the realization such as solid_spot_acm_detached, solid_seam_hexa_adhesive_shell_gap, or solid_area_hexa_adhesive_shell_gap. |
| • | These property collectors are created with the PSOLID card associated with them, and are referenced in the above created components containing the Solid Hexa weld elements. |
| 3. | In addition, this script also updates the weights of any RBE3 that is almost zero, because weight factors close to 0.0 cause Nastran and OptiStruct solvers to generate incorrect results. |
| Note: | New components and properties will only be created if they do not already exist; otherwise the existing components and properties are used. For this reason, comps/props will not always follow the naming conventions given here, because preexisting ones might already have different names. |
Also, when creating realizations with a mid-thickness option, the naming conventions include the presence of the mid-thickness. For example, when creating a hexa (RBE2-RBE3) configuration using a mid-thickness option:
| • | Solid elements will be organized into a Component named solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE3 elements will be organized into a Component named rbe3_seam_ hexa_RBE2_RBE3_mid_thick |
| • | RBE2 elements will be organized into a Component named rbe2_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Properties will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
| • | Materials will be created with the name solid_seam_ hexa_RBE2_RBE3_mid_thick |
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Nastran hemming
CFG nastran 122 hemming
*filter area
*style adhesive 1
*head
*body 0
rbe3 1 1
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Description: Creates RBE3 elements for the body, the head elements project and connect to the nodes of the adjoining shell elements.
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Nastran bolt (collapse Rigid)
CFG nastran 123 bolt (collapse Rigid)
*filter bolt
*style bolt 14
*head
*body 0
rigidlink 1 12
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Description: This realization creates a single RBE2 element for the body. The element projects and connect to the nodes of the adjoining shell/solid elements which form the hole.
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Automatic Exclusion of Special Nodes During Rigid Bolt Realization
HyperMesh automatically excludes special nodes as potential slave nodes for any rigid bodies created during bolt realization, even though they fall with the virtual Bolt Cylinder diameter. Nodes that are referred in the constraints are considered special nodes.
