摘要
针对混凝土的破坏模式,把连续损伤模型嵌入LS-DYNA有限元软件中,对炸药在土壤-混凝土复合介质中爆炸时波的传播、混凝土的损伤破坏进行了数值模拟研究,得到了土壤-混凝土界面参数的变化规律以及土壤厚度对混凝土损伤破坏的影响规律.研究结果对于战斗部和防护结构设计以及工程爆破具有一定的参考价值.
The numerical simulation for wave propagation with attenuation and damage effect in soil and concrete are performed by using the three-dimension finite element code LS-DYNA, into which the continuum damage model which can well describe the fracture of concrete is implemented. The interfacial parameters of soil and concrete vs. time and location are obtained. The laws of the damage zone of concrete with the thickness of soil are also presented. Numerical results will provide a reference for the design of warhead, the protective structure and engineering blasting.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2007年第9期765-768,共4页
Transactions of Beijing Institute of Technology
基金
北京理工大学优秀青年教师资助计划项目(000Y02-11)
