Issue with ply thickness constraint (PLYTHK) in free-size optimization

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

Dear Community,

 

I find a problem in imposing minimum ply thickness constraint (PLYTHK) during free-size optimization.

Whatever value I put in the DSIZE card as minimum ply thickness, this seems to be ignored by the solver and I get, in the resultant size model, plies with thickness lower than the value I specify.

 

I have attached a simple model as example.

In the example: Although I set 0.05mm as minimum ply thickness for all the plies, I get plies with lower thickness (e.g, ply 205200 is 0.02mm thick, ply 310300 is 0.0096mm thick, and so on...) in the sized resultant model.

 

Has anybody found the same behaviour? and, has anybody found a solution?

 

 

Thanks for the support,

Alessandro

Unable to find an attachment - read this blog

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2017

    Hi @Alessandro

     

    PLYTHK constraint does not show any effect in Freesize optimization. This constraint will be carried to Size optimization and plies will be divided to ply thickness value during size optimization. 

     

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