摘要
利用ANSYS/LS-DYNA3D对柱状药包在半无限岩石介质中爆炸情况进行了数值模拟,对柱状药包的爆炸在岩石内产生的应力变化进行了分析。给出了岩石弹性区内一点的应力变化时程曲线;并借助球形装药的经验公式对柱状装药的情况进行了分析比较,结果表明,应力波的峰值基本一致。该时程曲线可以用于多孔爆破计算。
Using ANSYS/LS-DYNA3D the paper stimulated numerically the explosion of cylinder charges in semi-infinite rock and analyzed the resulting change in stress across the rock. This resulted in giving the time history of stress of one point in elastic areas. The analysis comparison of the cylinder charges were carried out with empirical formula of sphere charges, showing that the peak values from the empirical formula of sphere charges were consistent with the cylinder charges. This result suggested that the time history curve of stress can be used in the calculation of multi-bores＇ explosion.
出处
《工程爆破》
2007年第1期24-27,共4页
Engineering Blasting
关键词
应力时程曲线
柱状装药
数值模拟
多物质流固耦合
Time history curve of stress
Cylinder charges
Numerical simulation
Multi-material coupling of liquid and solid
