Numerical solution for shape optimization of an impactor penetrating into a semi-infinite target

被引：18
|
作者：
Ben-Dor, G [1 ]
Dubinsky, A [1 ]
Elperin, T [1 ]
机构：
[1] Ben Gurion Univ Negev, Dept Engn Mech, Pearlstone Ctr Aeronaut Engn Studies, IL-84105 Beer Sheva, Israel
来源：
COMPUTERS & STRUCTURES | 2003年 / 81卷 / 01期
关键词：
impact; computational simulation; penetration; optimization;
D O I：
10.1016/S0045-7949(02)00391-7
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The shape of the impactor with the maximum depth of penetration (DOP) for a given impact velocity is found using a numerical procedure for solving a corresponding non-classical variational problem. It is shown that the optimum shape in a general case is close to a blunt cone. The variation of the optimal shape of the impactor and the dependence of the DOP vs. the initial (impact) velocity and friction coefficient is studied. The analysis is performed also for optimal conical impactors. (C) 2003 Elsevier Science Ltd. All rights reserved.
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页码：9 / 14
页数：6
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