Nonlinear contact mechanics and fracture of plate under impulsive load

摘要

Contact Problem is the most challenge and attractive part of mechanics since Hertz. As the contact interface, the pressure and contact area are unknown aprior, at the same time, there always occur large deformation and large local rotation at the contact points, the classical linear elasticity can not solve the contact mechanics problem completely. In this paper, we shall show that in the case of large plastic deformation of a circular plate under impulsive load of a rigid ball, the non-Kirchhoff-Love plate theory of Prof. Chien, coupled with nonlinear contact mechanics should be used in solving the problem.