LAUSR

Purpose The application of multi-scale methods in the context of constitutive modeling of microheterogeneous materials requires the choice of a representative volume element of the considered microstructure, which may be based on some idealized assumptions and/or on experimental observations. In any case a realistic microstructure within the RVE is either computationally too expensive or not fully accessible by experimental measurement techniques, which introduces some uncertainty regarding the microstructural features and the macroscopic as well as the microscopic fields. Design/methodology/approach In this paper, a systematical variation of microstructural parameters controlling the morphology of a representative volume element with an idealized microstructure is conducted and the impact on macroscopic quantities of interest as well as microstructural fields and their statistics is investigated. The study is carried out under macroscopically homogeneous deformation states employing the direct micro-macr...