경계요소법을 이용한 계면균열의 응력특이성에 관한 고찰

Study on the Stress Singularity of Interface Crack by using Boundary Element Method

The boundary element method was used for studying singularities of an interface crack with contact zones. Because the contact zone size was extremely small in a tention field, a large number of Gaussian points were is used for numerical integration of the Kernels. In order to estimate the contact zone size, iteration method was used. The interface crack tips with contact zones showed no oscillatory behavior and J-integral values across the interface were conserved.