학술논문

The Influence of Interatomic Bonding Potentials on Detonation Properties
Document Type
Working Paper
Source
Physical Review E Vol.76, p.026318 (2007)
Subject
Condensed Matter - Materials Science
Condensed Matter - Statistical Mechanics
Language
Abstract
The dependence of macroscopic detonation properties of a two-dimensional diatomic (AB) molecular system on the fundamental properties of the molecule were investigated. This includes examining the detonation velocity, reaction zone thickness, and critical width as a function of the exothermicity of the gas-phase reaction and the gas-phase dissociation energy for. Following previous work, molecular dynamics (MD) simulations with a reactive empirical bond-order potential were used to characterize the shock-induced response of a diatomic AB molecular solid, which exothermically reacts to produce gaseous products. MD simulations reveal that there is a linear dependence between the square of the detonation velocity and each of these molecular parameters. The detonation velocities were shown to be consistent with the Chapman-Jouguet model, demonstrating that these dependencies arise from how the Equation of State of the products and reactants are affected.
Comment: 12 pages, 17 figures