Numerical simulation of processes in rigid deformable media in the presence of dynamic contacts using grid-characteristic method

A number of problems of dynamic deformation in the presence of moving contact surfaces is considered. A grid-characteristic method, using two-dimensional irregular triangular grid and a hybrid scheme with 1–2 order of approximation is adapted. An algorithm for calculating the force of friction and the force of static friction is proposed. A numerical solution to problems of the wheel rolling, of the generation of shear waves, of acceleration of a plunger in a tube, of ricochet is obtained.