Engineering Solutions

OptiStruct to LS-DYNA Conversion

OptiStruct to LS-DYNA Conversion

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OptiStruct to LS-DYNA Conversion

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Use the Conversion tool to convert an OptiStruct file to a LS-DYNA file.

1.Load the OptiStruct user profile.
2.Import an OptiStruct model.
3.To run the conversion macro, from the menu bar, click Tools > Convert > OptiStruct > To LsDyna. The Conversion tab opens.
4.For Destination template, select the destination solver version.
5.To start the conversion, click Convert. After the conversion, the LS-DYNA user profile automatically loads.
6.Review and export the deck using the LS-DYNA user profile. Some of the keywords in the OptiStruct deck are converted to the LS-DYNA deck as per the following tables.

 

Element Mapping


OptiStruct  type

LS-DYNA type

CONM2

*ELEMENT_MASS

CBAR

*ELEMENT_BEAM

CTRIA3,CQUAD4, CQUAD8, CTRIA6

*ELEMENT_SHELL

CTETRA4/CHEXA8/CPENTA6

*ELEMENT_SOLID

RBAR

*CONSTRAINED_SPOTWELD

PLOTEL

*ELEMENT_PLOTEL

RBE3

*CONSTRAINED_INTERPOLATION

RBE2

*CONSTRAINED_NODE_SET

CELAS1

*ELEMENT_DISCRETE

 

Property Mapping


OptiStruct type

LS-DYNA type

PSOLID

*SECTION_SOLID

PSHELL

*SECTION_SHELL

 

Material Mapping


All the LS-DYNA materials are mapped MAT1 in OptiStruct.

 

Boundary Conditions Mapping


OptiStruct type

LS-DYNA type

SPC

*BOUNDARY_SPC

FORCE, MOMENT

*LOAD_NODE_POINT

PLOAD4

*LOAD_SEGMENT

TEMP

*INITIAL_TEMP

 

Coordinate System Mapping


OptiStruct type

LS-DYNA type

CORD1R

*DEFINE_COORDINATE_NODE

CORD2R

*DEFINE_COORDINATE_
SYSTEM

 

See Also:

OptiStruct Conversion Tools