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Explicit Dynamics- Material does not reach ultimate stress |
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June 15, 2015, 12:19 |
Explicit Dynamics- Material does not reach ultimate stress
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New Member
sal
Join Date: May 2015
Posts: 4
Rep Power: 10 |
Hi, I am working on a simple single fiber "tensile test". One side of the fiber is fixed and the other is applied a velocity boundary condition. I am trying to conduct it in a quasi-static analysis. Therefore, I have assessed a ton of velocities (especially slow velocities within 1% of the wave propagation speed of the material). For the velocities that have the stress flow throughout the body, the stress stops increasing well below the failure criterion. I have even tried to vary the static damping coefficient. The material is defined with a multilinear isotropic hardening plasiticity law and plastic strain failure criterion. Am I missing something or have I setup the problem wrong somehow?
Thanks any help is appreciated |
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