A new method for determining the equation of state of aluminized explosive

Zheng Qing Zhou, Jian Xin Nie*, Xue Yong Guo, Qiu Shi Wang, Zhuo Cheng Ou, Qing Jie Jiao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The time-dependent Jones-Wilkins-Lee equation of state (JWL-EOS) is applied to describe detonation state products for aluminized explosives. To obtain the time-dependent JWL-EOS parameters, cylinder tests and underwater explosion experiments are performed. According to the result of the wall radial velocity in cylinder tests and the shock wave pressures in underwater explosion experiments, the time-dependent JWL-EOS parameters are determined by iterating these variables in AUTODYN hydrocode simulations until the experimental values are reproduced. In addition, to verify the reliability of the derived JWL-EOS parameters, the aluminized explosive experiment is conducted in concrete. The shock wave pressures in the affected concrete bodies are measured by using manganin pressure sensors, and the rod velocity is obtained by using a high-speed camera. Simultaneously, the shock wave pressure and the rod velocity are calculated by using the derived time-dependent JWL equation of state. The calculated results are in good agreement with the experimental data.

Original languageEnglish
Article number016401
JournalChinese Physics Letters
Volume32
Issue number1
DOIs
Publication statusPublished - 1 Jan 2015

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