Adaptive Lagrangian modelling of ballistic penetration of metallic targets

被引：242

作者：

Camacho, GT ^{[1
]}

Ortiz, M ^{[1
]}

机构：

[1] BROWN UNIV, DIV ENGN, PROVIDENCE, RI 02912 USA

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1997年 / 142卷 / 3-4期

关键词：

D O I：

10.1016/S0045-7825(96)01134-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Lagrangian finite element model of ductile penetration is developed. Adaptive meshing is accorded a key role in following the large deformations which develop during penetration. An explicit contact/friction algorithm is used to treat the multi-body dynamics. Rate-dependent plasticity, heat conduction and thermal coupling are also accounted for in the calculations. The properties and predictive ability of the model are exhibited in several applications: copper rod impact, perforation of aluminum plates by conical-nosed projectiles and penetration of high-strength steel targets by WHA long rods. The simulations show close agreement with experimental observations and prior numerical results.

引用

页码：269 / 301

页数：33

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