Hi,
I have raw uniaxial tensile data (force vs displacement) from rectangular sample. I want to try fit raw data with Neo-Hookean material model (Young's modulus and Poisson's ratio). I might have a very naive question as I am total beginner in solid mechanics and FEA but would it be possible using FEBio to fit force vs displacement or engineering stress vs strain and true stress vs strain? What are examples of FEBio with inverse fitting models?
I thought that if Neo-Hookean material model will not be able to fit the raw data I will go for non-linear material model. My second step would be using the calculated fitted material parameters and material model, reproduce uniaxial tensile test (raw data results which have yield point followed by sudden drop and plateau of plastic deformation followed by fluctuations at large strains).
I would appreciate for any relevant information.
Regards,
Nataliya
I have raw uniaxial tensile data (force vs displacement) from rectangular sample. I want to try fit raw data with Neo-Hookean material model (Young's modulus and Poisson's ratio). I might have a very naive question as I am total beginner in solid mechanics and FEA but would it be possible using FEBio to fit force vs displacement or engineering stress vs strain and true stress vs strain? What are examples of FEBio with inverse fitting models?
I thought that if Neo-Hookean material model will not be able to fit the raw data I will go for non-linear material model. My second step would be using the calculated fitted material parameters and material model, reproduce uniaxial tensile test (raw data results which have yield point followed by sudden drop and plateau of plastic deformation followed by fluctuations at large strains).
I would appreciate for any relevant information.
Regards,
Nataliya
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