Hello all,
I know this question has been addressed in some past questions, however I would like to know if the the values of the true stress = sigma_nominal(1+strain_nominal) versus plastic strain = strain_true_total-(true stress)/E, where: strain_true_total = ln(1+strain_nominal), E = Young's modulus are entered into the tables1, or the values directly from the experimental stress-strain curve are entered. I am asking about the case of an elastoplastic material, with the table defined in terms of the plastic strain and the presence of large deformations.
Thank you.