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In this study, we apply Multiscale Cohesive Zone Model (MCZM) to understand relations between stress profile and crack pattern in brittle glass. MCZM employs interatomic potential into constitutive relation of finite element method to express cohesive law in fracture process zone. We extend the method to solve three-dimentional dynamic fracture problems with considering inhomogeneous deformation inside the cohesive zone. In addition, in order to apply the method to amorphous materials, Molecular dynamics simulation is implemented to evaluate stress-strain relation with an unit cell composed of multiple atoms.

Cohesive Zone mode, fracture, mutiscale