Macro-Micro Uncoupled Analysis Procedure for Nonlinear Structural Mechanics of Composites RVE Approach to Microstructural Geometrically Nonlinear Problem

摘要

The purpose of this study is to develop a practical analysis procedure for nonlinear structural mechanics composites. Especially, to solve such a nonlinear mechanical problem arising from the microstructural non-behavior, the new homogenization procedure named macro-micro uncoupled method is proposed. the homogenized macroscopic material properties are calculated by precise microscopic nonlinear analysis.Then, macroscopic analysis can be performed easily by only referring to the pre-calculated nonlinear material properties. In this paper, RVE approach is taken for the microscopic nonlinear analysis, and the proposed macro -micro uncoupled method is applied to a microstructural large deformation problem of porous media.