New finite element approach for analysis of contact model under impact-sliding motion

To study the distribution of stress on surface layer and subsurface layer of material in condition of impact-sliding motion,the contact mode under impact-sliding coupling was established.The load is dispersed by using virtual contact loading method,simplifying the contact search algorithm in the finite element model and improving the efficiency of calculation.The results show that impact-sliding contact mainly becomes shear apparent and asymmetry of contact stress.