The analysis model can contain arbitrary element types and supplementary
options.
Only design nodes that are attached to certain element types can be
used in shape and bead optimization, see About Design variables (DV_SHAPE)
and Design variables (DV_BEAD)
for details. All other element
types are allowed if they are not modified during the optimization. Only
certain element types for defining the restriction areas of elements
are permitted.
Some further restrictions may apply regarding specific design responses.
Please check remarks for this.
SIMULIA Tosca Structure
Element type |
MSC Nastran®
Element type |
Design element |
SOLID_BRICK_8 |
CHEXA |
C, S, F |
SOLID_BRICK_20 |
CHEXA |
C, S, F |
SOLID_TETRA_4 |
CTETRA |
C, S, F |
SOLID_TETRA_10 |
CTETRA |
C, S, F |
SOLID_PENTA_6 |
CPENTA |
C, S, F |
SOLID_PENTA_15 |
CPENTA |
C, S, F |
SHELL_QUAD_4 |
CQUAD4 CQUAD8 CQUAD CQUADR CSHEAR CQUADX |
C, S, F C, S, F C C, S, F C,
S, F |
SHELL_QUAD_8 |
CQUAD8 CQUAD CQUADX |
C, S, F C |
SHELL_TRIANG_3 |
CTRIA3 CTRIA6 CTRIAR CTRIAX CTRIAX6 |
C, S, F C, S C, S, F C |
SHELL_TRIANG_6 |
CTRIA6 CTRIAX CTRIAX6 |
C, S, F C |
BEAM_3D |
CBAR CBEAM CBEND CBUSH |
can be used as restriction element for shape
optimizations |
GAP_2_ND |
CGAP |
|
MASS_1 |
CONM1 CMASS1 |
|
DUMMY_ELEM_TYPE |
all not supported element types |
|
C=allowed for controller-based
optimization (bead, shape and topology); S=allowed for sensitivity-based
topology optimization; F=allowed for the design responses that use the
element-based reaction and internal forces |
More solver specific information about Sensitivity based algorithm is found in Remarks for Sensitivity-Based Optimizations.
For sensitivity based bead optimization, see Special Remarks Using Sensitivity-Based Algorithm.
|