Relaxation in viscoelastic material

Relaxation in viscoelastic material

lucmartzz
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Relaxation in viscoelastic material

lucmartzz
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Hello,

 

I'm simulating a viscoelastic material in the nonlinear module, the part deforms over 50% (expected behavior) and the analysis runs flawlessly. Now I need to investigate the impact of the relaxation of the material after some minutes but clearly I can not get that on nonlinear, I need a time dependent analysis.

 

I also tried by adding subcases where the deformation is hold by a enforced motion and I can see some kind of relaxation but I can no say the time on that is happening.

Any suggestion based on Nastran Capabilities? 

 

Best Regards.

Esteban M.

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