How do I create stress-free strain using eigenstrain? #17270
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I am building a simple model for mine simulations. The workflow goes like this:
I am stuck at step 4. I think it should be possible using ComputeEigenstrain or ComputeVariableEigenstrain, but not sure about the syntax. Any help? |
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Replies: 4 comments 2 replies
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Dear @jlinBE The reduction of the stiffness tensor is not the same thing as introducing an eigenstrain. An example of code for stiffness reduction based on the temperature is in my repository: The choice between stiffness degradation and introducing eigenstrain depends on the specific phenomenon. Best Regards, |
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About your point 4) |
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Dear @Traiwit It's difficult to say what is your convergence problem. I suggest you start from the setting of this example with small strain: Best Regards, |
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To simplify the question, is there a way that I can change the elasitcity_tensor (E and passion ration) of a block without changing the disp_x,y,z of that block from the previous step. Thanks guys! |
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About your point 4)
I suggest you to check for elastic-perfectly plastic material models, which is what you are describing.
It may be already available in the tensor mechanics module.