ANALYSIS OF CRITICAL DAMAGE OF THIN PLATE SUBJECTED TO CONTACT EXPLOSIONS

摘要：

The damage of thin steel plate subjected to contact explosions was a very complex nonlinear process. The initial crevasse of plate subjected to contact explosions had influence upon the whole damage process, so the critical damage study was significant on the anti-explosion of ship structure: In virtue of the wave solution of the plate plastic dynamic response and the dynamic fracture theory, the critical blasting charge was derived theoretically when onset of initial circumferential crack namely critical damage happened. And the expression of critical deformation was also obtained. Lastly the results calculated using proposed method were compared with numerical simulation and the experiment in the published literature, which were almost coincided. It could be seen that the present method could perfectly solve the critical damage of thin plate under contact explosions theoretically, and provide references for defensive engineering.

关键词： Contact explosions Dynamic fracture Critical blasting charge Critical deformation

作者: Jian He Zhen Peng Liao Ming Chen Jing Zhang

作者单位: College of Civil Engineering, Harbin Engineering University, Harbin 150001, P.R. China Institute of Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080,P.R. China College of Civil Engineering, Harbin Engineering University, Harbin 150001, P.R. China

会议类型: 国际会议

会议名称: 第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)

会议地点: 长沙

会议语种:英文

页码: 1988-1991

在线出版日期: 2008-10-19（万方平台首次上网日期，不代表论文的发表时间）