接触爆炸载荷作用下单层薄板临界破坏分析  

Critical Damage of Thin Plate under Contact Explosion Loading

作　　者：施兴华[1] 张婧 王善[2] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003 [2]哈尔滨工程大学建筑工程学院,黑龙江哈尔滨150001

出　　处：《南京理工大学学报》2009年第2期238-241,共4页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金委员会-中国工程物理研究院联合基金(10276013)

摘　　要：该文基于爆轰理论,应用薄板塑性动力响应波动解及动态断裂准则,从理论上推导了薄钢板在爆炸冲击作用下产生初始环向裂纹即发生临界破坏时的装药量,给出板的临界位移理论表达式。算例、实验及仿真结果基本吻合,表明该方法能很好地解决接触爆炸载荷作用下薄板的临界破坏问题。According to the detonation theory, the wave solution of plate plastic dynamic response and the dynamic fracture criterion, the critical blasting charge is theoretically derived when onset of initial circumferential crack namely critical damage happens in the thin plate under explosions. The theoretical expression of critical deformation is also obtained. The theoretical results are compared with the experimental results in the published literature and the numerical simulation results through an example. The reuhs are in agreement. It is shown that the method here can perfectly solve the critical damage of thin plate under contact explosions

关 键 词：爆炸载荷 薄板 临界破坏 动态断裂 

分 类 号：U661[交通运输工程—船舶及航道工程]