Failure modeling of...
 
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Failure modeling of thermoplastics  


giampiero.volante
Posts: 4
(@giampiero.volante)
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Joined: 6 years ago

Hello all,

I am using PolyUMod for modeling thermoplastics -specifically PP and UHMWPE. I am interested in failure at large deformations (fracture) under multiaxial loading. How can I set a failure model for such cases? I read in one of Dr. Bergstroms paper that chain strain is the best value to predict failure but I dont know what value I should set and I am not sure if this single value will capture the failure in compression as well.

Thanks

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Jorgen
Posts: 3882
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(@jorgen)
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Joined: 1 year ago

The chain stretch criterion work rather well in many cases.
Give it a try and let us know how it goes.

-Jorgen

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