Analysis of Incipient Sliding Contact with Orthotropic Friction Condition Subjected to Tangential Load and Twisting Moment

접선하중과 비틀림모멘트를 받는 직교이방성 마찰조건의 정지미끄럼접촉 해석

A numerical scheme is developed for the analysis of incipient sliding contact with orthotropic friction condition subjected to tangential load and twisting moment. The inherent nonlinearity in the orthotropic friction law has been treated by a polyhedral friction law. Then, a three-dimensional linear complementarity problem(LCP) formulation in an incremental form is obtained, and the existence of a solution is investigated. A Lemke's complementary pivoting algorithm is used for solving the LCP. The scheme is illustrated by spherical contact problems, and the effects of eccentricity of elliptical friction domain on the traction and stick region are discussed.