分段计算方法在模拟爆炸应力波传播中的运用

针对爆炸加载下岩石响应的不同特点以及动力有限元和传统地震波模拟方法的局限性,提出了一种分段计算的数值模拟方法.该方法在空间上将所模拟的区域划分为非弹性段和弹性段,非弹性段内采用动力有限元计算方法,弹性段内采用传统的地震波方法,不同段之间以节点位移为边界条件.不同算法的数值模拟结果验证了分段计算方法用于模拟爆炸荷载产生地震波的有效性和正确性.

An Application of Subsection Calculating Method in Simulating of Blasting Stress Wave

A subsection calculating numerical simulating method is presented,based on the different dynamic responses of rock under blasting and the different limitations of dynamic finite element algorithms and traditional numerical simulating algorithms of seismic wave.The subsection calculating method divides the simulating region into an elastic region in which dynamic finite element algorithms are applied and an inelastic region in which traditional numerical simulating algorithms are applied while displacement i...