Ricochet Mechanism And Numerical Simulation

In this paper,the causes of ricochet is analyzed by theory means,the whole process of kinetic energy projectile oblique penetrating semi-infinite thick soil target board are introduced by using ANSYS/LS-DYNA software,according to different factors,including the different nose shape, incidence angle, initial striking velocity and different soil materials to simulated and compared. In the first part, the paper reviews the history and the status of research on penetration problem,which draws the significance of the research on the ricochet phenomenon of projectile in soil. Then the character of numerical simulation is introduced simply. According to the Lagrange algorithm of ANSYS/LS-DYNA finite element computational procedures,a simulation analysis is made,which analyzes the process of the whole process of kinetic energy projectile oblique penetrating semi-infinite thick soil target board. Based on the analysis, the ricochet phenomenon of projectile in soil are obtained in different situations,and the movement rules and characteristic are summarized in different nose shape,incidence angles,striking velocity and soil materials.Finally,the simulated data is compared with the results of theory means to verify the correctness of the finite element analysis. The research provides good references for construction and protection of military,It also has important meaning for the design of vicochet attacking in soil.