Novel Spatially and Temporally Resolved Meso-scale Experimental Quantification of Temperature and Deformation Fields in Heterogeneous Energetic Materials

Abstract

This project focused on (1) the development of a computational capability for analyzing the response of energetic materials such as PBX and GX under dynamic loading and (2) establishment of the ignition behavior of heterogeneous energetic composites as microstructure at the microscale. The thermal-mechanical computational framework (CODEX, Cohesive Dynamics for Explosives) utilizes a fully dynamic cohesive finite element method (CFEM) which allows the effects of large deformation, thermomechanical coupling, failure in the form of microcracks, and frictional heating to be tracked. The capabilities resulting from this project can be used to design new energetic materials of interest to the USAF.

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Document Details

Document Type
Technical Report
Publication Date
Jun 26, 2019
Accession Number
AD1096536

Entities

People

  • Daniel E Eakins
  • Min Zhou
  • Naresh Thadhani

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cameras
  • Chemistry
  • Climate Change
  • Composite Materials
  • Energetic Materials
  • Explosives
  • Light Sources
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanics
  • Optical Properties
  • Optics
  • Visible Spectra

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Rocket Propulsion.
  • Structural Health Monitoring of Composite Structures.