Strain as a respone in free-size optimization

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

Hi,

 

I am working on free size optimization for composites in HM 14.0. When I use strain as a response and constrain it with a lower bound value, I am getting below error. Can anyone answer why I am getting it.

 

 ERROR # 1800 ***
 Stress/strain/force responses are applied to property 602686 which
 belongs to a topology or free-size domain. For stress-constrained
 topology or free-size optimization, please use the STRESS option
 on the design variable definition card. 

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Answers

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

    Hi Sumanth,

     

    Strain response is currently not supported.

     

    As an alternative you can try defining STRESS as a constraint in topology optimization using the below option (Analysis > Optimization > Topology > Parameters > Stress constraint -DTPL card)

     

    Thanks,

    Vikas

     

     

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