Identification of Material Parameters for Inelastic Constitutive Models: Design of Experiments

Abstract

In order to determine the material parameters of a constitutive model, identification experiments of different kinds have to be performed. Usually, the data of those experiments result from tension‐relaxation and tension‐compression tests at different strain rates as well as from creep tests with different hold stresses. However, these experiments are very expensive. Thus, the most important experiments to obtain good parameter estimates should be analyzed. The aim of this research is to find an experimental design which optimizes the balance between the accuracy of the parameter estimates and the experimental costs.