Topology Optimization with fully stressed design

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

Hello,

 

is it possible to run a topology optimization maximizing the von-Mises stresses to a state of a Fully Stressed Design ?

 

I want to optimize a reinforced concrete beam under a given load.

The respons should be to minimize the mass/volume by optimizing the concrete towards its main compressive stress (reaching a Fully Stressed Design). Is this possible by using the stress constraint definition of optistruct ?

 

Thanks for your answer. 

 

Philipp

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Hi,

     

    This should be possible. 

    You can provide the stress constraint on DTPL card. 

     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Thank you for your answer.

     

    How would i do that ? My idea was the following setup:

     

    Optimization Responses: 1 mass, 2 static stress

    Optimization Constraints: response = stress, upper bound = -25 N/mm²

                                                                                    lower bound = -25 N/mm²

    Objectives: minimize mass

     

    Would that give me the soulution i need ? 

     

    Thanks again for your help. 

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Hi,

     

    You can use, but instead, use stress constraint on DTPL (-25) and check if this helps.

     

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