A Study of the effect of aspect ratio on fragmentation of explosively driven cylinders

被引：6

作者：

De Vuyst, Tom ^{[1
]}

Vignjevic, Rade ^{[1
]}

Campbell, James C. ^{[1
]}

Klavzar, Andreas ^{[2
]}

Seidl, Marina ^{[2
]}

机构：

[1] Brunel Univ London, NSIRC, Inst Mat & Mfg, Dynam Response Grp,Struct Integr, Grant Pk, Cambridge CB21 6AL, England

[2] French German Res Inst St Louis, 5 Rue Gen Cassagnou, F-68300 St Louis, France

来源：

14TH HYPERVELOCITY IMPACT SYMPOSIUM (HVIS 2017) | 2017年 / 204卷

关键词：

explosively driven cylinders; fragmentation; dynamic fracture; smoothed particle hydrodynamics; soft recovery; HYDRODYNAMICS; NECKING;

D O I：

10.1016/j.proeng.2017.09.773

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The work presented in this paper consists of a parametric study of explosively driven fracture and fragmentation of steel cylinders. The effect of cylinder height to wall thickness ratio on the failure mode and fragment shape is studied using a numerical model based on the meshless Smoothed Particle Hydrodynamics (SPH) method. The simulation results are supplemented with experiments with identical charge geometries and materials, to analyse the natural fragmentation behaviour of the different cylinders. Characteristic fragments were softly recovered in a water basin and fragment mass distributions are compared to the simulation results. (C) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：194 / 201

页数：8

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