弾塑性論に基づくゴム材の速度・圧力依存性摩擦モデルの提案

（第一報 凝着摩擦の定式化）

抄録

An adhesion is one of essence for rubber friction because magnitude of friction force is result in magnitude of adhesion on a real contact area. However, the real contact area during sliding depends on a state and history of contact surface. Therefore, rubber friction sometimes shows the rate- and pressure-dependency. To rationally describe rubber friction and to simulate using FEM, in this study, we formulate the rate- and pressure-dependent friction model based on the elastoplastic theory. Concretely, we adopt a nonlinear sliding surface (frictional criterion), and prescribe several evolution laws for internal state variables. Then, in 2^nd report, we demonstrate the mechanical response of proposed friction model. And its validity is verified by comparing with experiments between a rough PDMS and smooth PMMA contact surface.