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Problem/bug with 2D axisymmetric Maxwell material results?
Posted Nov 7, 2014, 3:19 a.m. EST 0 Replies
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I am running a 2D axisymmetric viscoelastic material model and I am calculating displacements, stresses etc.
The solution at time equals zero is as expected and I have checked this against other codes.
But after the first timestep I get a large jump in displacements, and also the response I get looks too fast.
I am not sure if it a bug in the code, or if I am using the wrong type of integrator.
The results change if I use ''include non-linear geometry''' and also seem timestep-dependent.
Note that I ran a very similar model in 2D plane strain and I got very good results, so I am suspecting there is something either with axisymmetric or the way I set up the model. I could send you a test file to check yourselves.
Any help is greatly appreciated as I have tried everything I can think of and still the results look very strange!
Thanks,
George
Hello George
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