I am using COMSOL Multiphysics 5.5. I am trying to simulate the tensile test of PCL scaffolds. However, regardless of the strain, I have the elastic region all the time which is not true when it comes to the experimental data.
I wanted to ask if the hyperplastic behavior is good for the PCL material to model? Is neo-Hookean material model ok? If so, where can I find the necessary properties or how to calculate them? It is very difficult for me to obtain needed properties for the models.
Should I use experimental data when modeling PCL scaffolds for the Young's modulus or should I use 280MPa which I found in the literature.
Thank you for your answer.
Do you know which stress and strain is the best to choose in COMSOL? There are several different one and I was wondering which ones are the best when simulating tensile test.
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