Ignition of a confined high explosive under low velocity impact
Ignition of a confined high explosive under low velocity impact
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DOI：
10.1016/j.ijimpeng.2008.08.002
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发表时间：
2009-04
影响因子：
5.1
通讯作者：
C. Gruau;D. Picart;R. Belmas;E. Bouton;F. Delmaire-Sizes;J. Sabatier;H. Trumel
中科院分区：
文献类型：
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作者：
C. Gruau;D. Picart;R. Belmas;E. Bouton;F. Delmaire-Sizes;J. Sabatier;H. Trumel
在低速冲击研究的框架下，致力于塑料粘结炸药（PBX）的安全性分析，我们提出了一个新的数值工具，旨在恢复HMX（高熔点炸药）基础成分的点火。主要的结果是使用了类似混凝土的本构律的PBX和有效地实现了点火准则。我们还提出了经典Steven试验的两种变体，使我们能够可视化点点火或不寻常的环形点火。计算结果表明，该计算工具能够准确地还原两种结果。
In the framework of low velocity impact studies, dedicated to safety analyses of plastic bonded explosives (PBX), we propose a new numerical tool, designed for restituting the ignition of a HMX (high melting point explosive) based composition. Major results are the use of a concrete-like constitutive law for the PBX and an efficient implementation of an ignition criterion. We also put forward two variants of classical Steven tests, which enable us to visualize either a dot ignition or an unusual ring-shaped ignition. It is shown that the calculation tool is able to restitute accurately both results.