ABSTRACT

Given this background, a number of studies on the performance evaluation of various hyperelastic models have been reported (Marckmann & Verron 2006, Steinmann et al. 2012, Hossain & Steinmann 2012). Most of these evaluations have used the measured data obtained by Treloar (1944) and Kawabata et al. (1981) so far. In particular, Steinmann et al. (2012) and Hossain & Steinmann (2012) evaluated the performance of the hyperelastic models based on the experimental data obtained by Treloar (1944). In these studies, (a) whether each model can reproduce or not three types of experimental data: UT(exp), PS(exp), and BT(exp) were evaluated, and (b) whether the material constants identified from only one deformation mode of the

1 INTRODUCTION

Industrial rubbers are widely used for applications such as tires, seals, and conveyor belts. To support a smooth mechanical design and/or development of these products, there is a demand to compute the mechanical behavior of the rubbers with a numerical simulation such as Finite Element Method (FEM). For the FEM analysis, it is important to select a reliable material model and then identify appropriate material parameters, because both factors provide a significant influence on the simulation results.