*** ERROR # 1807 ***

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

 Im getting the following error when i tried to put composite shaft with constrains Mass, and Composite Failure Upperbound 1. The Objective Function is Min Compliance.


 *** ERROR # 1807 ***
 Composite failure responses are applied to ply 9 which
 belongs to a topology or free-size domain.
Help needed, Thank you

<?xml version="1.0" encoding="UTF-8"?>CompFailure.PNG

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Answers

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

    Hi @akshay325

     

    The composite failure response is not supported for Topology Optimization. 

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

    Thank you, sir. 

    I also wanted to know how to constrain the free sizing optimized ply thickness to be more than 0.2mm as this is what we can manufacture, I'm using ply 45 and -45 and minimize Mass, and ending up with laminate as shown in the photo.

    <?xml version="1.0" encoding="UTF-8"?>45and-45.PNG

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

    Hi,

     

    You can constrain the thickness of plies during sizing optimization, 

     

    Use TMANUF on PLY or PLYMAN on DSIZE (FREESIZE parameters) which will be carried and implemented during sizing optimization

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