In Abaqus, I’m running a simulation to figure out the elastic/plastic behavior of a polymer material. I’m using a drukcer prager model to simulate the material’s plastic behavior. In order to determine the input parameters in Abaqus, I conducted tensile and compression tests (angle of friction, and hardening data). I’m having trouble with convergence when using the linear model, so I’m trying to use the hyperbolic model, but I’m not sure how to calculate the hyperbolic model’s parameters (angle of friction, Init Tension), is there any guidance on how to accomplish it?
- Training Expert asked 10 months ago
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Hi,
I recommend doing a hyperbolic curve-fitting on your data and obtaining the data you need. You can do this with MATLAB or Excel. Also, for more info, refer to this link: https://abaqus-docs.mit.edu/2017/English/SIMACAEMATRefMap/simamat-c-druckerprager.htm
Moreover, take a look at the links below. These are articles about the convergence issues and debugging in the ABAQUS.
https://caeassistant.com/blog/identifying-convergence-issues-abaqus/
https://caeassistant.com/blog/abaqus-errors-debugging-techniques/
Best wishes.
- Training Expert answered 10 months ago
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