Dn(κ) relation for the RDX/TNT and HMX/TNT rate sticks

作者：Zhang Hongliang; Huang Fenglei^*; Shen Fei; Wang Hui; Yuan Jianfei

来源：Explosion and Shock Waves, 2012, 32(5): 495-500.

• Dn(&kappa
• ) curves
• DSD
• High-speed photography
• HMX/TNT
• Mass ratio
• Mechanics of explosion
• Nonideal detonation
• RDX/TNT

It is necessary to determine the quantitative relation between the local normal detonation wave speed Dn and the total curvature κ when detonation shock dynamics (DSD) is used to study nonideal detonation. We extended our work on the Dn(κ) relation of HMX/TNT rate sticks from the RDX/TNT rate sticks. The Dn(κ) relation of HMX/TNT rate sticks in the different mixing ratios was analyzed, and the Dn(κ) relation was compared between the RDX/TNT explosives and the HMX/TNT explosives. Results show that the Dn(κ) curves of RDX/TNT explosives were subjacent on the Dn(κ) curves of HMX/TNT explosives at the same ratio. As the TNT percentage added, the Dn(κ) curves of RDX/TNT and HMX/TNT explosives were moved down. The Dn(κ, Rt) law was induced from the relation of Dn(κ) by introducing into the variable Rt. The Dn(κ, Rt) law could not only reduce the number of experimental calibration, but also meet the simulation precision of DSD method.

• 出版日期2012
• 单位北京理工大学