English Abstract
Modeling and Simulation of Viscoelastic Deformation Behavior of Rubber Containing Fillers

Yoshihiro TOMITA
Fukui University of Technology Department of Mechanical Engineering Gakuen, Fukui, Japan
Nippon Gomu Kyokaishi,(2009),82(11),464-471 General Review in Japanese

A brief review of constitutive equations based on the molecular chain network theory for elastic deformation behavior and the reptation theory for viscoelastic deformation behavior of rubbers were presented. The typical strainrate-dependent deformation behaviors under monotonic and cyclic straining with different strain rates were reproduced and they corresponded well to the experimentally obtained results, particularly softening and hysteresis loss, that is, the Mullins effect, occurring in stress-stretch curves under cyclic deformation processes. The deformation behaviors of carbon-black (CB) filled rubber under monotonic and cyclic straining are modeled by using the proposed constitutive equation and 3D homogenization method. The results reveal the mechanism in substantial enhancement of the resistance of CB-filled rubber to macroscopic deformation, hysteresis loss, and the effects of the distribution morphology and the volume fraction of CB on the deformation behavior.

Molecular Chain Network Theory, Non-affine Model, Viscoelastic Deformation Behavior, Homogenization Method, Filled Rubber, Computational Simulation