Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2016 - October 10, 2016
Stress strain relationships of foamed rubber was determined by mechanical characteristics of rubber matrix and microscopic structures. The microstructure consists of air voids, beams and walls. Numerical analysis method like finite element analysis (FEM-analysis) of foamed rubber considering microstructure require large computer resources. In this study, practical analysis method was develop by the three-dimensional finite element analysis using homogenization method. The microstructure of foamed rubber was assumed to have the periodic structure, homogenization theory was applied to FEM analysis of hyperelasticity. Using stress strain relationships of general polyurethane, the influence on mechanical characteristic by the change of the structure was confirmed. Thus, the parameters decided mechanical characteristic of foamed rubber was verified.
