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8262213 
Journal Article 
三种典型炸药晶体微塑性与撞击感度的相关性 
Wen, MP; Fu, T; Tang, MF; Tan, KY; Xu, R; Chen, TN 
2020 
1 
Hanneng Cailiao / Chinese Journal of Energetic Materials
ISSN: 1006-9941 
Institute of Chemical Materials, China Academy of Engineering Physics 
28 
11 
1102-1108 
Chinese 
In order to study the effect of the crystal microscopic properties of elemental explosives on their macro-mechanical behavior and impact sensitivity of composite explosives, the micro-plastic characterization methods of TNT, RDX and HMX were studied. And the correlation analysis between the micro-plasticity of the explosive crystals and their impact sensitivities of the elemental explosive was carried out. Nano-indentation technology was used to test and calculate the micro-elasticity and micro-plasticity of TNT, RDX and HMX explosive crystals, and a calculation method based on the ratio of plastic energy and indentation energy (ηP) was proposed to quantify the micro-plastic properties of explosive crystals. The results showed that, compared with the micro-plasticity (δh) calculated by the indentation depth, the linear correlation coefficient between the micro-plastic properties (ηP) of the explosives crystals obtained in this research and impact sensitivities (P) of explosives in simple powders reached 95.8%, or micro-plastic properties of simple explosives were highly related to their impact sensitivities on the micro-characterization method of plastic properties of explosives crystals proposed in this paper. This research provided a micro- characterizing method for evaluating safety levels of explosives. © 2020, Editorial Board of Chinese Journal of Energetic Materials. All right reserved. 
Explosives; Impact sensitivity; Micro-plastic property; Nano-indentation; Single crystal