A numerical solution of general frictional contact problems by the direct boundary element and mathematical programming approach

摘要: Abstract An algorithm for solving the parametric linear complementary problem (PLCP) deduced from boundary element (BE) frictional contact approach is presented. This numerical procedure based on decoupling of normal pressure and tangential traction. In beginning each load increment, node pairs corning into real are determined. The principal pivoting applied to variables LCP system find pressures, P N , gaps, D not in contact. values then used as known data calculation tractions, T well displacements, W . Because both these two main steps we use some types direct method, CPU time predictable convergence can be guaranteed. one advantages present method over standard pivot or iteration dealing with a non-symmetric BE matrix. Some examples also given.