Error Message 557

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

I am attempting to do a size optimization on a composite structure in OptiStruct, but I keep getting this error. I cannot find a Card named DESSUB. does anyone have any information on this error message and what might be causing it. 

 

*** ERROR # 557 ***
 DRESP1 2 is not referenced from within a buckling SUBCASE.
 This type of response must be specified from within a buckling 
 SUBCASE.
 This error occurs in DESSUB 3.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2017

    Hi @Ben K

     

    What is the type of response you are using?

     

    Can you recheck the constraint response?

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