The 3D Numerical Simulation Of Single-particle Brittle Material Impact Breakage

Impact breakage Study is not only powder technology issues of common concern, but also one of the main topics in solid-state physics. Some researchers have been establish some of mechanical model for dynamic analysis, and explained some of the phenomenon of impact breakage by elastic-plastic mechanics, fracture mechanics, damage mechanics, the stress wave theory. Then they use photoelastic experiment, high-speed photography and numerical simulation to the process of the single particle impact breakage.Single-particle brittle material impact breakage theory research has always been one of the major concerns. In this paper, based on impact breakage theory, applications ANSYS/ LS-DYNA software simulate the impact breakage process of glass ball and talc.The first chapter summarized status of impact breakage theory research. The second chapter introduce the impact breakage theory of the single-particle materials. The third chapter describe briefly ANSYS / LS-DYNA basic theory and CAE analysis process. The fourth chapter and the fifth chapter numerical simulation and analysis the glass ball and talc.The LS-DYNA 3D numerical simulations represent the changes of the stress nephogram on the surface of the glass ball and talc and within the vertical plane during impact crushing process. These changes are one manifestation during the stress propagation. The directions of the stress propagation in the results of the drop hammer simulations confirm with the propagation directions of the main cracks in the results of the MCA2D method. The spallation phenomenon appears in both results of 3D numerical simulations, which proves that the results coincide with the stress wave theory. It helps to comprehend impact breakage process.