Propagation Properties of Shock Wave in Aluminum Powder/rubber Composites under Explosion Loading

doi:10.3969/j.issn.1000-1093.2020.10.009

Abstract

Abstract: The explosion loading test were carried out to investigate the propagation of explosion shock wave in aluminum powder/rubber composites containing 30-60 vol% Al. The shock wave pressures ranged from 6.50 to 14.25 GPa were measured using a manganin gauge, and the attenuation mechanism of shock wave was revealed by observing the mesostructure of the composites. The results show that the shock wave pressure at 15 mm propagation distance decreases first and then increases with the increase in the aluminum powder content under the same charge characteristics; the composites containing 50 vol% Al presents the strongest attenuation behavior to the shock wave, which is related to its viscous constitutive behavior, and the pressure attenuation coefficient of 0.066 8 was obtained by fitting the test results.

Key words: aluminumpowder/rubbercomposites, explosionloading, shockwavepropagation, manganingauge

CLC Number:

O382⁺.3

LI Junbao, LI Weibing, WANG Heng, YUAN Shuqiang, WANG Xiaoming, HONG Xiaowen, XU Heyang. Propagation Properties of Shock Wave in Aluminum Powder/rubber Composites under Explosion Loading[J]. Acta Armamentarii, 2020, 41(10): 2001-2007.

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