接近爆炸作用下板状介质破坏数值模拟

利用有限元计算软件LS-DYNA建立板状介质破坏的三维模型,并用LS-DYNA970软件的求解器和后处理器对板状介质在爆炸作用下的破坏过程进行了数值模拟。通过数值模拟,再现了炸药爆炸后,冲击波的传播过程以及冲击波作用下板状介质的变形过程;并对爆破动载作用下板状介质破坏情况进行了相应的理论分析。

NUMERICAL SIMULATION OF BOARD MEDIUM DESTRUCTION IN THE CLOSELY BLASTING ACTION

In this thesis,a 3-dimensional numerical model of board medium is built with the help of LSDYNA, and the simulation result about blasting process of the board medium destruction is analyzed on the basis of LS-DYNA970 solvers and st-processing. Through numerical simulation,two processes after the explosion are objectively showed. One is about the transmission process of the shock wave through the earth, and the other is about the board when it receives a certain force from the shock wave. The thesis also made a further analysis about the board medium destruction in the blasting action. In this thesis,a 3-dimensional numerical model of board medium is built with the help of LS-DYNA,and the simulation result about blasting process of the board medium destruction is analyzed on the basis of LS-DYNA970 solvers and st-processing. Through numerical simulation,two processes after the explosion are objectively showed. One is about the transmission process of the shock wave through the earth, and the other is about the board when it receives a certain force from the shock wave. The thesis also made a further analysis about the board medium destruction in the blasting action.