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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2011001345
pages 377-384

FORMIC ACID INVESTIGATION FOR THE PREDICTION OF HIGH EXPLOSIVE DETONATION PROPERTIES AND PERFORMANCE

Ernest L Baker
U.S. Army Armament Research, Development and Engineering Center (ARDEC), Picatinny, New Jersey 07806-5000, USA
Leonard I. Stiel
NYU Polytechnic School of Engineering, Six Metrotech Center, Brooklyn, New York 11201, USA
C. Capellos
U.S. Army Armament Research, Development and Engineering Center (ARDEC), Picatinny, New Jersey 07806-5000, USA
B. M. Rice
U.S. Army Research Laboratory (ARL), Aberdeen Proving Grounds, Maryland 21005, USA
S. W. Bunte
U.S. Army Research Laboratory (ARL), Aberdeen Proving Grounds, Maryland 21005, USA
E. F. C. Byrd
U.S. Army Research Laboratory (ARL), Aberdeen Proving Grounds, Maryland 21005, USA

RÉSUMÉ

The Jaguar EXP-6parameters of formic acid were originally optimized by minimizing the difference of experimental detonation velocities to predicted Chapman−Jouguet (C7−J) detonation velocities for PETN, and were later modified to reproduce experimental overdriven detonation pressures. The resulting parameters are employed in the JAGUAR computer program, which uses direct minimization of free energy to calculate chemical equilibrium for dissociated detonation product species of explosives. JAGUAR has been subsequently demonstrated to provide accurate detonation properties for wide ranges of conditions including the C−J state, overdriven detonation, and at seven volume expansions for nearly ideal H−C−N−O-based explosives. This work focuses on predicting formic acid thermodynamic properties, including the Hugoniot behavior using experimental data and molecular dynamics modeling. Both the molecular dynamics calculations and experimental data have been used to parameterize new sets of EXP-6 potential parameters for use with the extended JCZ3 JAGUAR equation of state. This provides a means for comparison of predicted detonation properties using either the empirically derived or theoretically based formic acid potential parameters.


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