Numerical simulation of the parabolic shell surface under blast wave loading

作     者：侯俊亮 蒋建伟 房玉军 

作者机构：State Key Laboratory of Explosion Science and TechnologyBeijing Institute of Technology China South Industry Research Academy 

出 版 物：《Journal of Beijing Institute of Technology》 (北京理工大学学报（英文版）)

年 卷 期：2012年第21卷第4期

页      面：427-433页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by the National Defense Basic Science Foundation(B1020060357) 

主　　题：blast wave thin shell simulation deflection 

摘      要：Deformation of parabolic shell surface under explosion shock waves is a complex dynamic problem. Because of reflection and interference of blast wave, it＇s hard to analytically delineate the dynamic responds of radar parabolic shell surface on blast wave. To gain the characteristics of thin shell deformation under impulsive loading of blast wave, numerical simulation methods for blast load on the shell structure was studied and analyzed. Euler-Lagrange numerical simulation was implemen- ted by AUTODYN code to simulate the problem. Through analysis on deflection feature of radial po- sition under different explosive mass and detonation height, an equation was founded by fitting the deflection results from numerical simulation results of shockwave loading. Experiments were ar- ranged to confirm the validity of the formula. The results gained by simulation are consistent with experiments, and the formula can be used to delineate the deflection of aluminum alloy parabolic shell under blast loading.