A New Method for Determining the Equation of State of Aluminized Explosive

doi:10.1088/0256-307X/32/1/016401

Chin. Phys. Lett.

2015, Vol. 32

Issue (01): 016401 DOI: 10.1088/0256-307X/32/1/016401

CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES

A New Method for Determining the Equation of State of Aluminized Explosive

ZHOU Zheng-Qing, NIE Jian-Xin^**, GUO Xue-Yong, WANG Qiu-Shi, OU Zhuo-Cheng, JIAO Qing-Jie^**

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081

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ZHOU Zheng-Qing, NIE Jian-Xin, GUO Xue-Yong et al 2015 Chin. Phys. Lett. 32 016401

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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.

Published: 23 December 2014

PACS:	64.30.-t	(Equations of state of specific substances)
	82.20.Wt	(Computational modeling; simulation)
	82.33.Vx	(Reactions in flames, combustion, and explosions)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/32/1/016401 OR https://cpl.iphy.ac.cn/Y2015/V32/I01/016401

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	ZHOU Zheng-Qing
	NIE Jian-Xin
	GUO Xue-Yong
	WANG Qiu-Shi
	OU Zhuo-Cheng
	JIAO Qing-Jie

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