Proposal of rate-dependent friction model based on internal variable and its application to FE analysis

本研究的目的是提出一种分析粘滑运动的数值方法，该方法是基于有限元方法，使用arate相关的摩擦模型。首先，我们提出了率相关的摩擦模型的基础上的弹塑性配方。然后，我们通过将其结果与在各种材料和动态条件下获得的实验结果进行比较，证明了速率相关摩擦模型的能力。然后，进行率相关摩擦滑动行为的有限元分析，包括粘滑运动，以检查材料和几何属性和边界条件对数值结果的影响。本文的数值方法不仅能考虑摩擦和材料的性质，而且能考虑边界条件的变化。

The aim of this study is to propose a numerical approach for analyzing stick-slip motion; the approach is based on the finite element method implemented using arate-dependent friction model. First, we propose the rate-dependent friction model based on the elastoplastic formulation. We then demonstrate the capability of the rate-dependent friction model by comparing its results with experimental results obtained under various material and dynamicconditions. Then, a finite element analysis of rate-dependent frictional sliding behavior, includingstick-slip motion, is carried out to examine the effect of the material and geometric properties andboundary conditions on the numerical results. The present numerical approach can consider not only the properties of friction and materials but also variations in boundary conditions.