Determination of JWL Parameters for Non-Ideal Explosive

Abstract

Experimental and theoretical studies of the O(3P) + C2H4 reaction dynamics: Collision energy dependence of branching ratios and extent of intersystem crossing J. Chem. Phys. 137, 22A532 (2012) Effect of soot microstructure on its ozonization reactivity J. Chem. Phys. 137, 084507 (2012) High-resolution spectroscopy for Doppler-broadening ion temperature measurements of implosions at the National Ignition Facility Rev. Sci. Instrum. 83, 10E127 (2012) Electrophoretic deposition and mechanistic studies of nano-Al/CuO thermites J. Appl. Phys. 112, 024316 (2012) Impact ignition of aluminum-teflon based energetic materials impregnated with nano-structured carbon additives Abstract. JWL equation of state is widely used in numerical simulation of detonation phenomena. JWL parameters are determined by cylinder test. Detonation characteristics of non-ideal explosive depend strongly on confinement, and JWL parameters determined by cylinder test do not represent the state of detonation products in many applications. We developed a method to determine JWL parameters from the underwater explosion test. JWL parameters were determined through a method of characteristics applied to the configuration of the underwater shock waves of cylindrical explosives. The numerical results obtained using JWL parameters determined by the underwater explosion test and those obtained using JWL parameters determined by cylinder test were compared with experimental results for typical non-ideal explosive; emulsion explosive. Good agreement was confirmed between the results obtained using JWL parameters determined by the underwater explosion test and experimental results.

A numerical study on high-speed water jet impact

“…(ρ 0 c 2 0 η is equivalent to the elastic bulk modulus at small nominal strains). The values of these parameters, s and Γ, for defining water, were referred from Hamashima et al (2003). …”

Impact damage of composite laminates with high-speed waterjet

“…Material properties of the interface cohesive element [29,30]. The values of the coefficients for water are referred to [36] and listed in Table 3. 03 GPa) at the first instant of contact, followed with the relatively low stagnation pressure dominated by the length of the water column.…”

Study on High-Strain-Rate Deformation of Magnesium Alloy Using Underwater Shock Waves Generated by High-Voltage Electric Discharge of Thin Wire

“…The results are described in Section 3.2. The pressure of the SEP explosive can be calculated using the Jones-Wilkins-Lee equation of state [41]. As depicted in the schematic diagram (Figure 4c), the explosive was set at the top of the pressure vessel filled with water.…”