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Non-Shock Initiation Model for Explosive Families: Experimental Results

  • Mark U. Anderson
  • Steven N. Todd
  • Terry L. Caipen
  • Charles B. Jensen
  • Chance G. Hughs
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

The “DaMaGe-Initiated-Reaction” (DMGIR) computational model has been developed to predict the response of ideal high explosives to impulsive loading from nonshock mechanical insults. The distinguishing feature of this model is the introduction of a damage variable, which relates the evolution of damage to the initiation of a reaction in the explosive, and its growth to detonation. This model development effort treats the nonshock initiation behavior of explosives by families; rigid plastic bonded, cast, and moldable plastic explosives. Specifically designed experiments were used to study the initiation process of each explosive family with embedded shock sensors and optical diagnostics. The experimental portion of this model development began with a study of PBXN-5 to develop DMGIR model coefficients for the rigid plastic bonded family, followed by studies of the cast, and bulk-moldable explosive families, including the thermal effects on initiation for the cast explosive family. The experimental results show an initiation mechanism that is related to impulsive energy input and material damage, with well defined initiation thresholds for each explosive family. These initiation details will be used to extend the predictive capability of the DMGIR model from the rigid family into the cast and bulk-moldable families.

Keywords

Impact Velocity Detonation Velocity Shock Velocity Impulsive Loading Rigid Plastic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Todd, S.N., “Non-shock initiation model for plastic bonded explosive PBXN-5: empirical and theoretical results”, New Mexico Tech, PhD Dissertation, April 2007.Google Scholar
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    Anderson, M. U., et al, “Prediction and data analysis of current pulses from impact-loaded piezoelectric polymers (PVDF)”, Shock Compression of Condensed Matter-1989, pp 805-808, 1990.Google Scholar
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    Anderson, M. U., et al, “Non-Shock Initiation of the Plastic Bonded Explosive PBXN-5: Experimental Results”, Shock Compression of Condensed Matter-2007, pp 959-962, 2007.Google Scholar
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    Brown, G.W., Dynamic and Quasi-static Measurements of PBXN-5 and Comp-B Explosives, SEM 2009 Annual Conference and Exposition on Experimental and Applied Mechanics proceedings, June 2009.Google Scholar
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    Todd, S. N., et al, “Non-Shock Initiation Model for Explosive Families: Numerical Results”, Shock Compression of Condensed Matter-2009, pp 361-364.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Mark U. Anderson
    • 1
  • Steven N. Todd
    • 1
  • Terry L. Caipen
    • 2
  • Charles B. Jensen
    • 1
  • Chance G. Hughs
    • 3
  1. 1.Sandia National LaboratoriesAlbuquerqueUSA
  2. 2.Applied Research AssociatesAlbuquerqueUSA
  3. 3.North VectorMenlo ParkUSA

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