Lagrangian analysis of MIV (Magnetic ImpulseVelocity) gauge experiments on PBX 9502 using the massdisplacement moment function
Abstract
Magnetic ImpulseVelocity (MIV) gauges were used to measure the impulse and particlevelocity fields at discrete Lagrangian positions in two samples of the triaminotrinitrobenzene (TATB) explosive PBX 9502. Each sample was shock driven by a 6.4 mm layer of reacting superfine TATB ((rho)(sub 0) = 1.80 g/cm(sup 3)), which was itself shocked by a gas driven projectile. The gauge histories of particle velocity and impulse, and the derived displacement history were simultaneously fit to the partial derivatives of the massdisplacement moment function employing a single set of parameters. (The function also gives volume, energy, pressure and their time derivatives.) With an assumed mixture equation of state, the reaction extent and reaction rate were calculated. The two experiments were compared and rate correlations were examined.
 Publication:

Presented at the 9th International Symposium on Detonation
 Pub Date:
 1989
 Bibcode:
 1989deto.symp.....F
 Keywords:

 Detonation;
 Explosives;
 Measuring Instruments;
 Shock Waves;
 Chemical Reactions;
 Equations Of State;
 Mathematical Models;
 Pulses;
 Velocity;
 Instrumentation and Photography