The mechanics of interface fracture in layered composite materials: (1) brittle homogenous and bi-material interfaces

A powerful analytical methodology is discovered and is used to partition the total energy release rate of one dimensional (1D) interface fractures on brittle homogeneous or bi-material interfaces into its mode I and II components based on the classical and shear-deformable plate theories and 2D elasticity. Previously unsolvable problems are solved and confusions explained.