Composite modeling in degradation phase

Altair Forum User

Hello guys!

I would like to find a possible method for simulating composites with non-linear material model.
It's important for me to know the behavior of the material in the degradation phase, so after reaching the displacement in point A on the picture.
I have to model the composite as shell, and have to use an implicit method. My question is that which solver with which property and material card combination is suitable for this analysis in Hyperworks? It is possible to use Optistruct to solve this matter?

Thanks for your help in advance!

 

Best regards,

Tüki

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Altair Forum User

Hi @Tüki

What material parameters do you have for composite materials?

From RADIOSS help:

 

RADIOSS uses only the elastic part of material parameters to build the stiffness matrix (or Jacobian matrix for nonlinear analyses) for most of the material laws and this should be sufficient for both Modified Newtons method and BFGS . Property type 15, 25, PROP/PCOMPP, etc.. supports orthotropic material with shell element type.