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How can I assign the initial stress data to my model before loading and simulation in OptiStuct?

I have the stress state of the component in *.sta file obtained from the Radioss solver.

Is there a way to assign the initial stress condition to model reading from .sta file before defining loading in Optistruct?

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OptiStruct

v2022.1.1

Accepted answers

Adriano_Koga

not really.

OptiStruct supports initial stresses, but it uses a different format for doing so.

You need to input the dta as indicated in the attached INISTRS card.

INISTRS.pdf

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Adriano_Koga

not really.

OptiStruct supports initial stresses, but it uses a different format for doing so.

You need to input the dta as indicated in the attached INISTRS card.

INISTRS.pdf

Sarjan Tiwari_21602

not really.

OptiStruct supports initial stresses, but it uses a different format for doing so.

You need to input the dta as indicated in the attached INISTRS card.

Thank you for your reply. INISTRS card seems like the option I have. But I am unable to create INISTRS card. Where can I find the INISTRS card? Can I write it down directly to the *.fem file from the text editor?

Adriano_Koga

Thank you for your reply. INISTRS card seems like the option I have. But I am unable to create INISTRS card. Where can I find the INISTRS card? Can I write it down directly to the *.fem file from the text editor?

I believe you will need to write it outside HyperMesh and import it as an include file into your model.

Maybe SimLab supports it already. Maybe it's worth taking a look.