Composite failure constraints
Hi, I'm optimizing a composite model and I want to constrain the failure.
I created the composite failure response and then created the constraint applied to all of my loadcases with an upper bound of 1.
I don't see CFAIL as an output option in control cards so added CFAIL(ALL) = ALL to the .fem file or in CASE_UNSUPPORTED_CARDS in control cards.
Observing the results in hyperview show that only ply failure is observed by the optimization and that bond failure is not.
Is there a different form of failure constraint that would allow the optimization to adhere to bond failure as a constraint?
Thanks,
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My mistake, I meant to say *CFAILURE in my original post, that's what I have been using. is there another constraint to make bond failure a constraint?
Altair EmployeeHi SSnell,
there is only composite failure available.
I will check if there is a work around to use bond failure as a response and will get back to you soon.
Altair EmployeeBTW, which failure criteria are you using for your analysis?
Thanks a lot for the reply, I'm using Tsai-Wu, the failure response is composite failure, and The upper bound for the constraint is 1.
A work around for bond failure would more than answer my question. Thanks
Hi,
Can you try CFAILURE instead of CFAIL as shown in the image below, please?
<?xml version="1.0" encoding="UTF-8"?>