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High stress values in modal frequency response

Hello,

In my modal frequency response (sol111), i am having high stress values ex. 15000 MPa, for G=0.06.

My acceleration value does not even exceeds 0.5 g (~4500 mm/s^2), in the signal input.

All other static analysis stress values are realistic.

Is this normal? IS there any important parameter or value to take into account.

Would appreciate your help.

Thanks

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OptiStruct

If you are using Nastran as the solver, Please get in touch with Nastran support.

Hi Prakash,

Thanks for your reply.

I meant, is there any parameters to consider on pre-processing in Hypermesh, before launching in Nastran?

Just wondered if you have faced similar issues in the past, that you have corrected by changing any parameters?

Thanks in advance.