nonlinear + transient tube compression

Hello all, I am studying optistruct, and I want to do a nonlinear material and transient load tube compression analysis, but i failed. I can succeed to run the model with nonlinear material with static load or linear material with transient load. But if I combined both, I failed. Could anyone help check my model? thank you.
Best Answer
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In NLPARM you are not using any DT, or NINC.
You can for example try with DT=0.05
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Answers
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Hello,
The model you shared converges easily on my end. Can you share the model that doesn't converge?
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Hello , I am trying to analyze the tube compression displacement under a TLOAD (loading and unloading )
When I choosed the analysis type : transient direct, I could get the compression result. But if I choosed the analysis type : non linear transient, the calculation is converged, but the compression result is almost zero.
I attached a PPT try to explain my proble
me.
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In NLPARM you are not using any DT, or NINC.
You can for example try with DT=0.05
0