Block Format Keyword
/PROP/TYPE19 - Ply Information for Sandwich Shell Property Set
Description
This property set is used to define the ply property set used in ply-based composite definition. It is used in combination with /PROP/STACK (/PROP/TYPE17) or /PROP/TYPE51 to create ply-based sandwich composite properties.
Format
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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/PROP/TYPE19/prop_ID/unit_ID or /PROP/PLY/prop_ID/unit_ID
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prop_title
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mat_ID
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t
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grsh4n_ID
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grsh3n_ID
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Npt_ply
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Optional:
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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drape_ID
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def_orth
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Field
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Contents
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SI Unit Example
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prop_ID
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Property identifier
(Integer, maximum 10 digits)
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unit_ID
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Optional unit identifier
(Integer, maximum 10 digits)
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prop_title
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Property title
(Character, maximum 100 characters)
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mat_ID
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Material identifier for ply
(Integer)
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t
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Thickness of ply
(Real)
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Incremental angle for layer (Comments 4 and 5)
(Real)
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grsh4n_ID
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Shell 4-nodes group identifier connected to ply (Comment 2)
(Integer)
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grsh3n_ID
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Shell 3-nodes group identifier connected to ply
(Integer)
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Npt_ply
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Number of integration points through ply thickness
(Integer)
= 0: default = 1
Maximum value = 9
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Angle between first and second material direction for ply i
Default = 90.0 (Real)
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drape_ID
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(Optional) Drape identification number (Comment 3)
(Integer)
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def_orth
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(Optional) The orthotropy angle (Comments 4 and 5)
= 0: Default = 2
= 1: The orthotropy angle is calculated using the angle, , defined in /SHELL and /SH3N
= 2: The orthotropy angle is calculated using the skew and rotation defined in /PROP/STACK option
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#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/UNIT/2
unit for prop
# MUNIT LUNIT TUNIT
kg mm ms
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PROP/TYPE19/11/2
PROP number 11
# mat_ID_i t delta_phi grsh4n_ID grsh3n_ID Npt_ply A_i
1 .5 45 0 0 0 0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#enddata
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
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1. | This ply property is used in combination with /PROP/STACK (/PROP/TYPE17) or /PROP/TYPE51 to create ply-based sandwich composite properties. |
2. | If both grsh4n_ID =0 and grsh3n_ID = 0, all elements in the part that reference this property belong to the ply. |
3. | If drape_ID is defined, the angle of each element defined in the drape is incremented by /DRAPE, and the thickness is modified by the ply thinning factor /DRAPE, Thinning. |
4. | The ply can be attached to a group of shell elements. |
The angle for ply i (in /PROP/STACK):

where, is defined in the /PROP/STACK.
5. | If def_orth = 2, the angle between the reference direction and the first direction of orthotropy is: |

where, is the angle increment defined in the drape option drape_ID (if any) and is defined in the /PROP/STACK for layer.
If def_orth = 1, the angle between the shell skew and the first direction of orthotropy is:

where, is the angle increment defined in the drape option drape_ID (if any) and is defined in the shell (/SHELL or /SH3N).
If def_orth = 1, Iskew, VX, VY, and VZ from the /PROP/STACK and /PROP/TYPE51 input are ignored.
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See Also:
Material Compatibility