Equation of state of detonation products of compact explosives

Pulsed Loading of Objects during Intense Expansion of Products of Explosion of Solid Explosives (Review)

“…4. As compared to the data of [2,6,7,9] for various brisant HEs, this dependence yields a noticeably lower value of γ for low densities (ρ/ρ H ≈ 10 −3 -10 −2 ) and a slightly higher value of γ for high densities (ρ ∼ ρ H ). Correspondingly, expression (9) predicts lower pressures for low EP densities, for which elastic forces can be neglected, than the known equations of state [2,6,7,9].…”

“…As compared to the data of [2,6,7,9] for various brisant HEs, this dependence yields a noticeably lower value of γ for low densities (ρ/ρ H ≈ 10 −3 -10 −2 ) and a slightly higher value of γ for high densities (ρ ∼ ρ H ). Correspondingly, expression (9) predicts lower pressures for low EP densities, for which elastic forces can be neglected, than the known equations of state [2,6,7,9]. The degree of adequacy and the range of applicability of the equation of state of explosion products of the form (9), which was derived in [51], can be determined in subsequent studies related to applications of various brisant HEs in physical experiments.…”

“…Correspondingly, expression (9) predicts lower pressures for low EP densities, for which elastic forces can be neglected, than the known equations of state [2,6,7,9]. The degree of adequacy and the range of applicability of the equation of state of explosion products of the form (9), which was derived in [51], can be determined in subsequent studies related to applications of various brisant HEs in physical experiments. It should be noted that the method developed for determining parameters of the .…”

“…It should be noted that the method developed for determining parameters of the . Grüneisen coefficient of explosion products versus density: 1) averaged data [2,6,7,9]; 2) curve constructed in [6]; 3) measurement range in [47,48,51] semi-empirical equation of state of explosion products at the stage of their intense expansion is fairly reliable because it is based on direct measurements of pressure and velocity of sound in explosion products in rescued explosion chambers.…”

“…The character of interaction of expanding combustion products with various media is determined by the thermodynamic state of explosion products, which is found from semi-empirical equations of state (see, e.g., [2,[6][7][8][9]). These equations allow one to determine the EP pressure as a function of density for a prescribed ratio of specific heats k or Grüneisen coefficient γ).…”