Void Collapse in Shocked β-HMX Single Crystals: Simulations and Experiments

被引：23

作者：

Duarte, Camilo A. ^{[1
]}

Hamed, Ahmed ^{[1
]}

Drake, Jonathan D. ^{[2
]}

Sorensen, Christian J. ^{[1
]}

Son, Steven F. ^{[1
]}

Chen, Weynong W. ^{[2
]}

Koslowski, Marisol ^{[1
]}

机构：

[1] Purdue Univ, Sch Mech Engn, 585 Purdue Mall, W Lafayette, IN 47907 USA

[2] Purdue Univ, Sch Aeronaut & Astronaut, 585 Purdue Mall, W Lafayette, IN 47907 USA

来源：

PROPELLANTS EXPLOSIVES PYROTECHNICS | 2020年 / 45卷 / 02期

关键词：

energetic materials; beta-HMX; shock; void collapse; plasticity; CHEMISTRY; MODEL;

D O I：

10.1002/prep.201900251

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Heat generation in the vicinity of a void during shock compression plays a key role in the initiation of energetic materials. The shock response of a single beta-HMX crystal with a single void is studied with simulations that include plasticity and heat transport. The numerical results are validated with an experiment in which a 500 mu m void is machined in an HMX single crystal and impacted. Experiments and simulations of the dynamical evolution of the morphology of the void during the collapse and the rate of the area are in very good agreement for weak shocks.

引用

页码：243 / 253

页数：11

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