摘要
利用ANSYS/LS-DYNA有限元程序对柱形装药土中爆炸过程进行三维数值模拟,研究爆炸作用下土介质的动力响应和爆腔的形成过程,得到稳定后的爆腔直径,分析爆炸挤压后周围土壤的密度变化曲线和挤密效果。结果表明,所建立的模型和所采用的算法合理,该模型和结论可用于指导相关爆炸试验的优化设计。
A three -dimensional numerical simulation of explosion process in cylindrical charge in soil is made using the ANSYS/LS - DYNA program. After studying the dynamic response of soil and the forming process of the explosive cavity, the diameter of stabilized cavity is get. Then the density curve and the compaction effect of the surrounding soil after explosion are analyzed. The model and the algorithm used are proved reasonable, and they can be used to guide the optimization design of the related explosion experiment.
出处
《军事交通学院学报》
2015年第3期87-90,共4页
Journal of Military Transportation University
关键词
地基处理
爆炸空腔
土壤密度
数值模拟
ground processing
explosion cavity
soil density
numerical simulation
