Dynamic fragmentation of melted metals upon intense shock wave loading.: Some modelling issues applied to a tin target

被引：0

作者：

Signor, L. ^{[1
]}

Dragon, A. ^{[2
]}

Roy, G. ^{[1
]}

De Resseguier, T. ^{[3
]}

Llorca, F. ^{[1
]}

机构：

[1] Ctr Valduc, CEA, F-21120 Is Sur Tille, France

[2] ENSMA CNRS, Lab Mecan & Phys Mat, UMR 6617, F-86961 Futuroscope, France

[3] ENSMA CNRS, Lab Combust & Deton, UPR 9028, F-86961 Futuroscope, France

来源：

ARCHIVES OF MECHANICS | 2008年 / 60卷 / 04期

关键词：

dynamic fragmentation; liquid metals; cavitation; hollow sphere; shock-induced melting; tin;

D O I：

暂无

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

WE ARE INTERESTED in the dynamic fragmentation event produced in shock-melted metals called micro-spalling. Global energetic approach is briefly reviewed. It provides a general modelling framework that leads to realistic fragment-size predictions. But the actual physical mechanisms involved remain poorly understood. We attempt to explore the conditions under which cavitation, i.e. nucleation and growth of microvoids, may be responsible for fragmentation. This cavitation process is described by means of a hollow sphere model whose matrix is made of liquid tin.

引用

页码：323 / 343

页数：21

共 20 条

[11] LOCAL INERTIAL EFFECTS IN DYNAMIC FRAGMENTATION [J].