Computational Characterization of Impact Induced Multi-Scale Dissipation in Reactive Solid Composites

Abstract

Mesoscale and macroscale modeling and simulation (M and S) were used to characterize shock induced dissipation in low density granular explosives (HMX, and HMX-Al composites). Emphasis was placed on characterizing how material microsctructure (particle size and packing density) and composition (metal mass friction) affect shock heating of the explosive component which established shock sensitivity and survivability. Predicted variations in hot-spot formation rate with shock strength were used to develop a microstructure-dependent ignition and burn model for low density HMX. The model was used to computationally examine ignition mechanisms resulting from low pressure shock input.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2016
Accession Number
AD1011939

Entities

People

  • Keith A. Gonthier

Organizations

  • Louisiana State University

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bulk Modulus
  • Burning Rate
  • Combustion
  • Energetic Materials
  • Engineering
  • Explosives
  • High Pressure
  • High Temperature
  • Jet Propulsion
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Payload
  • Plastic Bonded Explosives
  • Subatomic Particles

Readers

  • Computational Fluid Dynamics (CFD)
  • Explosive Engineering.
  • Structural Health Monitoring of Composite Structures.