Constitutive Equations of Adapted Complexity for High Temperature Loading

摘要

Different loading situations appear in high temperature applications like creep, fatigue and creep-fatigue interaction. Advanced constitutive equations have been developed in recent years in order to model such complex material behaviour. To this extend, a modular constructed material model database has been worked out to compare the applicability and accuracy of several models included. Modular construction of the constitutive equations provides individual inclusion or exclusion possibilities of the material parameters depending on the complexity of the loading. Therefore, the material model database acts as a tool for the selection of suitable models and for the optimization of the number of material model parameters and the resulting simulation time with an unchanging quality of the model results.