Numerical simulation of formation mechanism of multi hole and same delay time of blasting crater

By using ANSYS/LS-DYNA, 3D nonlinear dynamic finite element software, an elasticity calculation model is established to analyze the distribution and transmission of stress under explosive charge in multi hole and the same delay time; the stress distribution nephogram and stress-time curves of some typical elements of the mode in different times are obtained. The transmission of stress waves and the formation of blasting crater are shown. The factors influenced the formation of blasting crater are discussed. The research results of numerical simulation have been proved by field productive application.