Research on the Effect of Prefabricated Crack Distribution about Crack Propagation

Abstract

The extended finite element is known as the most promising numerical simulation method of crack propagation. In this paper Abaqus software is used to simulate the propagation of the Type I crack and verify the reliability of the numerical methods. With five different vertical distribution of pre-crack established, the paper respectively analyzes the vertical position’s influence on total crack extension form, X direction extension form and Y direction expansion form. By calculating the expansion velocity values, X direction expansion velocity values and Y direction expansion velocity values, the paper also analyzes the influence of crack location on each speed.