Theoretical studies for calculating the detonation products and properties of explosives

被引：0

作者：

School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan ^{[1
]}

Anhui

232001, China

不详 ^{[2
]}

100044, China

不详 ^{[3
]}

Anhui

232001, China

机构：

[1] School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, 232001, Anhui

[2] Beijing General Research Institute of Mining and Metallurgy, Beijing

[3] School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, Anhui

来源：

Baozha Yu Chongji | / 4卷 / 449-453期

关键词：

Detonation parameters; Equation of state; Gibbs free energy; Mechanics of explosion; Thermodynamic property;

D O I：

10.11883/1001-1455(2015)04-0449-05

中图分类号：

学科分类号：

摘要：

In order to calculate the detonation products and parameters, Lagrange multiplier and Newton iterative method were used to predict detonation products. The state equation of BKW was used to predict detonation parameters. In a range of pressure from 0 to 600 GPa and temperature from 300 to 15000 K, diamond was intended as the elemental carbon product. Based on the principle of minimum free energy, the equilibrium compositions of detonation products were calculated by using Newton iterative method, which need not calculate the free energy of each composition. The parameters of the state equation of BKW were modified. α=0.5; β=0.298; θ=6620; κ=9.50. Using self-made program, the detonation properties at CJ point of PETN, whose density is 1.77 g/cm3, were calculated with the theory in this paper and the equation of Hugoniot. The results show satisfactory agreement with the experimental data, with the error less than 1%. The density of detonation products is also predicted easily. When the density of PETN is 1.77 g/cm3, the density of detonation products is 2.43 g/cm3. ©, 2015, Explosion and Shock Waves. All right reserved.

引用

页码：449 / 453

页数：4

共 12 条

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