TITLE

Low amplitude impact of damaged PBX 9501

AUTHOR(S)
Idar, Deanne J.; Straight, James W.; Osborn, Michael A.; Coulter, William L.; Buntain, Gregory A.
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p655
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Low amplitude impact tests on pristine and damaged, baseline' and 'aged' PBX 9501 specimens were performed to determine the critical impact-velocity threshold for violent reactions. HE damage was achieved by a single impact ranging in velocity from 36.9 to 54.4 m/s. External blast gauge and ballistic pendulum data were used to evaluate reaction violence relative to a steady-state detonation. Strain gage data were used to evaluate the response of the explosive to impact and characterize subsequent reaction profiles. Test results show that the damaged threshold 1) is lower than the pristine threshold and 2) is invariant to PBX 9501 lot-to-lot and age variables.
ACCESSION #
5985436

 

Related Articles

  • Multiple charge reaction cell for studies of primary explosives. Miron, G.; Bar, I.; Heflinger, D.; Tzuk, Y.; Rosenwaks, S. // Review of Scientific Instruments;Jan1989, Vol. 60 Issue 1, p132 

    A reaction cell for the detonation of primary explosives is described. The cell is 250 mm in diameter and contains 30 samples, which can be initiated consecutively using a laser beam. A manually driven mechanism is used to locate each charge in its turn in a central firing position without...

  • Dispersion of crystallizing reagents by detonation method. Part I: Detonation product expansion and kinetics of critical-size embryo droplet formation. Zhekamukhov, M.; Abshaev, A. // Russian Meteorology & Hydrology;Jul2012, Vol. 37 Issue 7, p448 

    Considered are the processes of condensation in the cloud of explosive gases containing the vapor of crystallizing reagent. It is demonstrated that the stable condensation nuclei of critical size originate mainly at the moment of the transition of explosive products into the ideal gas. The rate...

  • An exact solution for axial flow in cylindrically symmetric, steady-state detonation in polytropic explosive with an arbitrary rate of decomposition. Cowperthwaite, M. // Physics of Fluids;Mar1994, Vol. 6 Issue 3, p1357 

    Methods of differential geometry and Bernoulli's equation, written as B=O, are used to develop a new approach for constructing an exact solution for axial flow in a classical, two-dimensional, ZND detonation wave in a polytropic explosive with an arbitrary rate of decomposition. This geometric...

  • Diameter effect and detonation front curvature of ideal and non-ideal explosives. Sandstrom, F. W.; Abernathy, R. L.; Leone, M. G.; Banks, M. L. // AIP Conference Proceedings;2000, Vol. 505 Issue 1, p825 

    Diameter effect and detonation front curvature data are presented for several representative ideal and non-ideal explosives, including cast TNT, Tritonal, urea nitrate (UN), ANFO, and two variants of ammonium nitrate (AN)/solid fuel explosives. The ideal vs. non-ideal detonation characteristics...

  • Detonation properties of nitromethane, deuterated nitromethane and bromonitromethane. Sheffield, Stephen A.; Davis, Lloyd L.; Engelke, Ray // AIP Conference Proceedings;2000, Vol. 505 Issue 1, p789 

    Liquid nitromethane (CH[SUB3]NO[SUB2] -- NM) is an important explosive material because of its chemical and physical simplicity. It has proved useful in studies of the chemistry and physics of initiation and detonation. We have experimentally investigated some of the effects on its properties...

  • Meso-scale origins of the low-pressure equation of state and high rate mechanical properties of plastic bonded explosives. Foster, Joseph C.; Glenn, Joseph G.; Gunger, Mike // AIP Conference Proceedings;2000, Vol. 505 Issue 1, p703 

    Most modern high explosives are formulated from a selection of energetic crystalline materials and plastics to create a material that accommodates the performance and sensitivity characteristic of the desired application. These materials are exposed to a variety of thermal-mechanical loads...

  • A coupled damage and reaction model for simulating energetic material response to impact hazards. Matheson, E. R.; Drumheller, D. S.; Baer, M. R. // AIP Conference Proceedings;2000, Vol. 505 Issue 1, p651 

    The Baer-Nunziato multiphase reactive theory for a granulated bed of energetic material is extended to allow for dynamic damage processes, which generate new surfaces as well as porosity. The Second Law of Thermodynamics is employed to constrain the constitutive forms of the mass, momentum, and...

  • Detonation Hugoniots produced by piston-driven simulations. Swanson, D. R.; Elert, M. L.; White, C. T. // AIP Conference Proceedings;2000, Vol. 505 Issue 1, p385 

    We have previously introduced a model of an energetic diatomic molecular solid based on reactive empirical bond order (REBO) potentials. This model is capable of supporting a detonation in two and three dimensions. When the range of the REBO potential is varied, a wide variety of properties are...

  • Do JCZ and BKW EOS need modification? Roth, Julius // AIP Conference Proceedings;2000, Vol. 505 Issue 1, p219 

    The JCZ and BKW EOS are widely used to compute P-V-T relationships of the gaseous products of CJ detonations, but these camputations need experimental verification. Quantitative comparisons of computed and experimental CJ parameters over a wide range of initial density &rho0 are a good test of...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics