Sets

Set entities are used to define and store lists of entity IDs for a specific entity. Sets can be generated for nodes, elements, components, assemblies, properties, materials, ellipsoids, multibody planes, multibody joints, and multibodies which contain entity IDs for that specific entity. Sets can also be generated as sets of sets, or lists of set IDs. Sets are shown under the Set folder within the Model browser. The Set browser can be used to create, edit, and review sets.

Sets do not have a display state.

Sets have an active and export state. The active state of a set controls the listing of the set in the Model browser and any of its views. If a set entity is active, then it is listed in the Model browser and any of its views. If a set entity is inactive, then it is not listed in the Model browser or any of its views.

The export state of a set entity controls wether or not that set is exported when the custom export option is utilized. The all export option is not affected by the export state of a set. The active and export states of set entities can be controlled using the Entity State browser.

The data names associated with sets can be found in the data names section of the HyperMesh Reference Guide.

The following panels can be used to create and edit sets:

Entity Sets

Solver Card Support for Sets

Note: Sets of different types but with the same ID are supported.

Supported Card	Solver Description	Supported Parameters	Notes
/GRBEAM	Describes the beam groups.
/GRBEAM/BEAM	Describes the beam number groups.
/GRBEAM/BOX	Describes the beam groups.
/GRBEAM/BOX2	Describes the beam groups.
/GRBEAM/GRBEAM	Describes the beam groups.
/GRBEAM/MAT	Describes the beam material groups.
/GRBEAM/PART	Describes the beam part groups.
/GRBEAM/PROP	Describes the beam property groups.
/GRBEAM/SUBSET	Describes the beam subset groups.
/GRBRIC	Describes the brick groups.
/GRBRIC/BOX	Describes the brick box groups.
/GRBRIC/BOX2	Describes the brick box groups.
/GRBRIC/BRIC	Describes the brick number groups.
/GRBRIC/GRBRIC	Describes the brick groups.
/GRBRIC/MAT	Describes the brick material groups.
/GRBRIC/PART	Describes the brick part groups.
/GRBRIC/PROP	Describes the brick property groups.
/GRBRIC/SUBSET	Describes the brick subset groups.
/GRNOD	Describes a node group
/GRNOD/BOX	Describes the node box groups.
/GRNOD/GENE	Describes the node groups.
/GRNOD/GRBEAM	Describes the node groups.
/GRNOD/GRBRIC	Describes the node groups.
/GRNOD/GRQUAD	Describes the node groups.
/GRNOD/GRSH3N	Describes the 3 node shell groups.
/GRNOD/GRSHEL	Describes the 4 node shell groups.
/GRNOD/GRSPRI	Describes the node spring groups.
/GRNOD/GRTRUS	Describes the node truss groups.
/GRNOD/MAT	Describes the node material groups.
/GRNOD/NODE	Describes the node groups.
/GRNOD/NODENS	Describes the unsortable node number groups.
/GRNOD/PART	Describes the node part groups.
/GRNOD/PROP	Describes the node property groups.
/GRNOD/SUBSET	Describes the node subset groups.
/GRNOD/SURF	Describes the node surface groups.
/GRPART	Describes the part groups.
/GRQUAD	Describes the quad groups.
/GRQUAD/BOX	Describes the quad groups.
/GRQUAD/BOX2	Describes the quad groups.
/GRQUAD/GRQUAD	Describes the quad groups.
/GRQUAD/MAT	Describes the quad material groups.
/GRQUAD/PART	Describes the quad part groups.
/GRQUAD/PROP	Describes the quad property groups.
/GRQUAD/QUAD	Describes the quad number groups.
/GRQUAD/SUBSET	Describes the quad subset groups.
/GRSH3N	Describes the 3 node shell groups.
/GRSH3N/BOX	Describes the 3 node shell groups.
/GRSH3N/BOX2	Describes the 3 node shell groups.
/GRSH3N/GRSH3N	Describes the 3 node shell groups.
/GRSH3N/MAT	Describes the 3 node shell material groups.
/GRSH3N/PART	Describes the 3 node shell part groups.
/GRSH3N/PROP	Describes the 3 node shell property groups.
/GRSH3N/SH3N	Describes the 3 node shell groups.
/GRSH3N/SUBSET	Describes the 3 node shell subset groups.
/GRSHEL	Describes the shell groups.
/GRSHEL/BOX	Describes the shell box groups.
/GRSHEL/BOX2	Describes the shell box groups.
/GRSHEL/GRSHEL	Describes the shell groups.
/GRSHEL/MAT	Describes the shell material groups.
/GRSHEL/PART	Describes the shell part groups.
/GRSHEL/PROP	Describes the shell property groups.
/GRSHEL/SHEL	Describes the shell number groups.
/GRSHEL/SUBSET	Describes the shell subset groups.
/GRSPRI	Describes the spring groups.
/GRSPRI/BOX	Describes the spring groups.
/GRSPRI/BOX2	Describes the spring groups.
/GRSPRI/GRSPRI	Describes the spring groups.
/GRSPRI/PART	Describes the spring part groups.
/GRSPRI/PROP	Describes the spring property groups.
/GRSPRI/SPRI	Describes the spring groups.
/GRSPRI/SUBSET	Describes the spring subset groups.
/GRTRUS	Describes the truss groups.
/GRTRUS/BOX	Describes the truss box groups.
/GRTRUS/BOX2	Describes the truss box groups.
/GRTRUS/GRTRUS	Describes the truss groups.
/GRTRUS/MAT	Describes the truss material groups.
/GRTRUS/PART	Describes the truss part groups.
/GRTRUS/PROP	Describes the truss property groups.
/GRTRUS/SUBSET	Describes the truss subset groups.
/GRTRUS/TRUS	Describes the truss groups.
/LINE	Definition of the line.
/LINE/BOX	Definition of the line box.
/LINE/BOX2	Definition of the line box.
/LINE/EDGE	Definition of the line edges of the surfaces.
/LINE/GRBEAM	Definition of the line.
/LINE/GRTRUS	Definition of the line.
/LINE/MAT	Definition of the line material.
/LINE/PROP	Definition of the line property.
/LINE/SURF	Definition of the line surface.
/SURF	Describes the surface definition.
/SURF/BOX	Describes the surface definition.
/SURF/BOX/ALL	Describes the box surface definition (All).
/SURF/BOX/EXT	Describes the external box surface definition.
/SURF/BOX2	Describes the surface definition.
/SURF/GRSHELL	Describes the surface definition of a group of shells.
/SURF/MAT	Describes the material surface definition.
/SURF/MAT/ALL	Describes the material surface definition (All).
/SURF/MAT/EXT	Describes the external material surface definition.
/SURF/PART	Describes the parts surface definition.
/SURF/PART/ALL	Describes the parts surface definition (All).
/SURF/PART/EXT	Describes the external parts surface definition.
/SURF/PROP	Describes the property surface definition.
/SURF/PROP/ALL	Describes the property surface definition (All).
/SURF/PROP/EXT	Describes the external property surface definition.
/SURF/SUBSET	Describes the subset surface definition.
/SURF/SUBSET/ALL	Describes the subset surface definition (All).
/SURF/SUBSET/EXT	Describes the external subset surface definition.
/SURF/SURF	Describes the surface definition.

OptiStruct sets are represented in HyperMesh as entity sets, and are controlled in the Entity Sets panel. The sets can be composed of grids, elements, design variables, MBD entities, mode numbers, frequencies or times for reference by other input definitions. In addition to the definition of entity sets through the explicit selection of the constituents, it is possible to define a set of nodes or a set of elements through a combination of formulaic expressions.

Supported Card	Solver Description	Supported Parameters	Notes
BORE	Bored Deformation
ERPPNL	Defines one or more sets of elements as panels for equivalent radiated power output for a frequency response analysis of a coupled fluid-structural model.
MBDCRV	Defines an ordered list of grids as a Multi-body Deformable Curve.
MBDSRF	Defines a Multi-body Deformable Surface.
MBPCRV	Defines a Multi-body Parametric Curve using node sets.
PANEL	Defines up to four sets of grid points as panels for panel participation output for a frequency response analysis of a coupled fluid-structural model.	n/a
PANELG	Defines a set of grid points and/or elements as a generic panel.
ROTORG	Used for the specification of grids that determine the Rotor Line model.	RSPINR
RSPINR	Defines the relative spin rates between rotors during a rotor dynamic analysis in Modal Complex Eigenvalue or Frequency Response solution sequences.
SET	Defines a set of grids, elements, design variables, MBD entities, mode numbers, frequencies or times for reference by other input definitions.	SET_DESVAR - Contains design variables SET_ELEM - Contains elements, properties, blocks or materials. SET_FREQ - Contains real values. SET_GRID - Contains nodes or blocks. SET_GRIDC - Contains grid and component list. SET_MODE - Contains real values. SET_PLOTEL - Contains output commands for grid and plot elements. SET_PLY - Contains plies. SET_TIME - Contains real values.	Sets of integer and real values are supported as entity sets.
SET3	Defines a set of grids or elements.	NODE ELEM PROP

Note: Sets that are created in HyperMesh are maintained on I/O by using $HMSET comment cards.

Sets can be created of nodes, elements, components, and other sets.

Supported Card	Solver Description	Supported Parameters	Notes
*DISTRIBUTION	Define spatial distributions	LOCATION NAME TYPE
*ELSET	Assign elements to an element set	ELSET GENERATE
*EMBEDDED ELEMENT	Specify an element or a group of elements that lie embedded in a group of “host” elements in a model	ABSOLUTE EXTERIOR TOLERANCE EXTERIOR TOLERANCE HOST ELSET ROUNDOFF TOLERANCE
*NODAL THICKNESS	Define shell or membrane thickness at nodes	GENERATE
*NSET	Assign nodes to a node set	NSET ELSET GENERATE UNSORTED

Sets can be specified directly from nodes and elements in the model or by a formula. Sets of sets and components are also supported in Abaqus templates. To create sets that contain a combination of sets and individual nodes or elements, select the add by IDs option in a formula-based set.

A User Comments block is supported for all sets. See the information below on how to add comments to any set card image. These comments will be preserved during import and export of the Abaqus input deck.

Sets using the GENERATE parameter can be expanded upon imported using the Expand sets defined by range solver option in the Import panel. This is useful for when node/element IDs are renumbered during import.

Supported Card	Solver Description	Supported Parameters	Notes
CMGRP	Groups components and assemblies into an assembly.	Name	This is supported as sets of sets.

Supported Card

Solver Description

Supported Parameters

Notes

NodeSets

Provides a means to reference a group of nodes with a single ID.

Also used to specify load or boundary conditions, or to identify nodes for a special output request.

The default LS-DYNA attribute values for the set can be edited. Individual values cannot be edited.

Supported Card	Solver Description	Supported Parameters	Notes
*DEFINE_HEX_SPOTWELD _ASSEMBLY	Assembly of elements that describes a spotweld.	NumID
*DEFINE_HEX_SPOTWELD _ASSEMBLY_N
*SET_BEAM(TITLE)	Define a set of beam elements.	GenerateOption Title
*SET_BEAM_ADD	Define a beam set by combining beam sets.	Title
*SET_BEAM_GENERATE (TITLE)	Generates a block of beam element IDs between a starting ID and an ending ID.	GenerateOption Title
*SET_DISCRETE(TITLE)	Define a set of discrete elements.	GenerateOption Title
*SET_DISCRETE_ADD	Define a discrete set by combining discrete sets.	Title
*SET_DISCRETE_ GENERATE(TITLE)	Generates a block of discrete element IDs between a starting ID and an ending ID.	GenerateOption Title
*SET_NODE_ADD	Define a node set by combining node sets.	A1 - A4 SOLVER (MECH, CESE, ICFD) Title
*SET_NODE_ADD_ ADVANCED	Define a node set by combining node sets or by combining NODE, SHELL, SOLID, BEAM, SEGMENT, DISCRETE and THICK SHELL sets.	A1 - A4 SOLVER (MECH, CESE, ICFD) Title
*SET_NODE_COLUMN	Define a nodal set with some identical or unique attributes.	DA1 - DA4 SOLVER (MECH, CESE, ICFD) Title
*SET_NODE_LIST(TITLE)	Define a nodal set with some identical or unique attributes.	DA1 - DA4 SOLVER (MECH, CESE, ICFD) Options (None, Generate, Column) Title
*SET_NODE_LIST_ GENERATE(TITLE)	Generate a block of node IDs between a starting nodal ID number and an ending nodal ID number.	DA1 - DA4 SOLVER (MECH, CESE, ICFD) NBEG, NEND Title
*SET_PART_ADD	Define a part set by combining part sets.	DA1 - DA4 SOLVER (MECH, CESE, ICFD) Title
*SET_PART_COLUMN (TITLE)	Define a set of parts with optional attributes.	DA1 - DA4 SOLVER (MECH, CESE, ICFD) Title
*SET_PART_LIST_ GENERATE(TITLE)	Generate a block of part IDs between a starting part ID number and an ending part ID number.	DA1 - DA4 SOLVER (MECH, CESE, ICFD) Title
*SET_SEGMENT_ GENERAL	Definition of contact surface from parts, elements, box.	DA1 - DA4 SOLVER (MECH, CESE, ICFD) Title
*SET_SHELL_ADD	Define a shell set by combining shell sets.	Title
*SET_SHELL_COLUMN	Define a set of shell elements with optional identical or unique attributes.	DA1 - DA4 Title
*SET_SHELL_LIST(TITLE)	Define a set of shell elements with optional identical or unique attributes.	DA1 - DA4 Options (None, Generate, Column) Title
*SET_SHELL_LIST_ GENERATE(TITLE)	Define a set of shell elements with optional identical or unique attributes.	DA1 - DA4 NBEG, NEND Title
*SET_SOLID(TITLE)	Define a set of solid elements.	SOLVER (MECH, CESE, ICFD) GenerateOption Title
*SET_SOLID_ADD	Define a solid set by combining solid sets.	SOLVER (MECH, CESE, ICFD) Title
*SET_SOLID_GENERAL
*SET_SOLID_GENERATE (TITLE)	Generate a block of solid element IDs between a starting ID and an ending ID.	SOLVER (MECH, CESE, ICFD) GenerateOption Title
*SET_TSHELL(TITLE)	Define a set of thick shell elements.	GenerateOption Title
*SET_TSHELL_GENERAL
*SET_TSHELL_GENERATE (TITLE)	Generate a block of thick shell element IDs between a starting ID and an ending ID.	GenerateOption Title

Supported Card	Solver Description	Supported Parameters	Notes
GROUP_FE	Assembles a selected set of finite element objects within an FE model into a group.	FE_MODEL
GROUP_MB	Assembles a selected set of multibody objects into a group.	BODY_LIST

Supported Card	Solver Description	Supported Parameters	Notes
DEFINE
OSET

Supported Card	Solver Description	Supported Parameters	Notes
BCPROP	Defines a 3D contact region by element properties.	Set Type (non-ordered, ordered, formula)
BNDFREE1		C
BOLT	Defines a rigid bolt by a set of MPC constraints.	ETYPE
BOLTLD
CSUPER	Defines the grid or scalar point connections for identical or mirror image superelements or superelements from an external source.	SSID, PSID
CSUPEXT	Assigns exterior points to a superelement.	SEID
ERPPNL	Defines one or more panels by referencing sets of elements or properties.	SETID - SET3 Bulk Data entry
PANEL	Defines one or more panels by referencing sets of grid points, elements or properties.	NAME, SETID,
ROTORG	Specifies grids that compose the rotor line model.	RSPINR RSPINT
RSPINR	Specifies the relative spin rates between rotors for complex eigenvalue, frequency response, and static analysis.		Supported in conjunction with ROTORG
RSPINT	Specifies rotor spin rates for Transient analysis.		Supported in conjunction with ROTORG
SEBNDRY	Defines a list of grid points in a partitioned superelement for the automatic boundary search between a specified superelement or between all other superelements in the model.	SEIDB Options (ALL, VALUE)
SEBSET1	Defines boundary degrees-of-freedom to be fixed (b-set) during generalized dynamic reduction or component mode calculations.	SEID, C
SECSET1	Defines boundary degrees-of-freedom to be free (c-set) during generalized dynamic reduction or component mode synthesis calculations.	SEID, C ALL
SEQSET1	Defines the generalized degrees-of-freedom of the superelement to be used in generalized dynamic reduction or component mode synthesis.	SEID, C
SESET	Defines interior grid points for a superelement.	SEID
SET	Defines a set of element or grid point numbers to be plotted.	ID	Node and element sets supported with the THRU option.
SET1	Defines a list of structural grid points or element identification numbers.	ID SKIN
SEUSET1	Defines a degree-of-freedom set for a superelement.	SEID, SNAME, C

Note:

When reading input decks that were not created in HyperMesh, an attempt is made to create two sets for each set found: one containing elements and one containing nodes. You can delete the unnecessary set.

Sets that are created are maintained as node or element sets by using $HMSET comment cards.

During import, entity sets are automatically generated. PAM-CRASH 2G cards with general entity selection generate entity sets.

Supported Card

Solver Description

Supported Parameters

Notes

GES /

GROUP /

Keyword selection

PAM-CRASH 2G GROUP / card and general entity selection (GES) are mapped as set of sets.

A set is created if only one keyword is used.

A set of sets is created in the following cases:

•	If the definition uses more than one keyword.

•	Unresolved groups are used in the definition.

•	More than one GRP keyword is present in the definition.

•	A GROUP definition is always implemented as set of set.

In card previewer a toggle switches between PAM-CRASH 2G GROUP and General Entity Selection.

Supported Card	Solver Description	Supported Parameters	Notes
ESET	Definition of new element sets. An element set may be defined by a list of element numbers or other element set names or using some generation rules.	NAME DESCRIPTION
ESETBIN	Definition of element set bins. An element set bin is defined by a list of element set names.	NAME DESCRIPTION
NSET	Definition of new node sets. A node set may be defined by a list of node numbers or other node set names or using some generation rules.	NAME DESCRIPTION
NSETBIN	Definition of node set bins. A node set bin is defined by a list of node set names.	NAME DESCRIPTION
SFSET	Definition of new surface sets. A surface set may be defined by a list of surface numbers or other surface set names or using some generation rules.	NAME DESCRIPTION

Supported Card	Solver Description	Supported Parameters	Notes
.SEL NOE	Defines a set of grids	GROUP, NOM, NŒUD, MAILLE
.SEL MAI	Defines a set of elements	GROUP, NOM, MAILLE

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See Also: