Detonation calculations with a Percus-Yevick equation of state

Journal Article · Sun Dec 01 00:00:00 EST 1974 · Rep. Invest. - U.S., Bur. Mines; (United States)

DOI:https://doi.org/10.1016/S0010-2180(74)80016-7· OSTI ID:6642828

Edwards, J C; Chaiken, R F

Chapman-Jouguet detonation calculations were conducted for pentaerythritol tetranitrate (PETN), TNT, and ammonium nitrate-fuel oil (AN-FO) explosives using the compressibility form of an equation of state of hard spheres based upon the Percus-Yevick (PY) theory, and a chemical equilibrium detonation code called TIGER. Similar calculations also were conducted with the Becker-Kistiakowsky-Wilson (BKW) equation of state. For PETN, the BKW equation gives somewhat better agreement with experimental values of detonation velocity and pressure. However, in terms of experimental temperatures and concentrations of the minor product species (NO), the predictions of the PY equation are shown to be more satisfactory. Similar comparisons of experimental and theoretical results for TNT and AN-FO indicate that the PY equation has general utility in predicting the detonation properties of condensed explosives at moderate loading densities (rho/sub o/ < 1.3 g/cu cm). (21 refs.)

• OSTI ID: 6642828
• Journal Information: Rep. Invest. - U.S., Bur. Mines; (United States), Vol. 7905
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
CHEMICAL EXPLOSIVES
DETONATIONS
CALCULATION METHODS
PERCUS-YEVICK EQUATION
USES
EQUATIONS OF STATE
EQUATIONS
EXPLOSIVES
450100* - Military Technology
Weaponry
&amp; National Defense- Chemical Explosions &amp; Explosives