Influence of Temperature on the Thermal Effect and Sensitivity of Impact Initiation of LX-04 Explosives

被引：2

作者：

Wang, Z. -S. ^{[1
]}

Jing, Q. ^{[1
]}

Liu, Q. -M. ^{[1
]}

Shen, Y. ^{[1
]}

Liu, C. -Q. ^{[1
]}

机构：

[1] Beijing Inst Technol, State Key Lab Explos & Sci, Beijing, Peoples R China

来源：

COMBUSTION EXPLOSION AND SHOCK WAVES | 2023年 / 59卷 / 01期

基金：

中国国家自然科学基金;

关键词：

temperature; LX-04; explosive; shock initiation; Ignition and Growth model; thermal effect; impact sensitivity; SHOCK SENSITIVITY; DETONATION; MODEL;

D O I：

10.1134/S0010508223010136

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Explosives are often exposed to war environments at different temperatures. The shock initiation characteristics of explosives are related to their properties and the ambient temperature in which they are located. In the present work, the parameters of the Ignition and Growth model of the LX-04 explosive at different temperatures are determined, based on the shock initiation experiments at different temperatures. Furthermore, the impact sensitivity simulation of LX-04 at initial temperatures of 25, 60, 100, 150, and 170 degrees C is carried out, and the critical impact velocity at these initial temperatures is found to be 325, 280, 233, 201, and 194 m/s, respectively. Based on the present simulation data, a new model for the relationship between the critical impact velocity and initial temperature is proposed. In addition, the initial temperature of the explosive has an important effect on the detonation performance: the higher the initial temperature, the higher the impact sensitivity of LX-04, and the higher the peak temperature of detonation.

引用

页码：110 / 117

页数：8