A Microforce-Based Theory for Energetic Materials

Abstract

Employing advanced tools of continuum thermomechanics, we have developed a fully three-dimensional framework, which in its most general form is able to model all the mentioned behaviors of energetic materials. The concept of microforces, forces that drive changes in material microstructure, is employed to generate consistent equations of evolution for combustion and phase transitions. The method of generating equations for thermomechanical behavior using microforces begins with the generation of a free-energy function that encompasses all the material changes. The Clausius-Duhem inequality, a statement of the second law of thermodynamics, is then applied, restricting the material behavior to be thermodynamically correct a prori. Appropriate forms of coupling behavior and dissipation functions are derived.

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Document Details

Document Type
Technical Report
Publication Date
Jun 08, 1999
Accession Number
ADA409445

Entities

People

  • D. Scott Stewart
  • Eliot Fried
  • Gregory A. Ruderman

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Research Laboratories
  • Applied Mechanics
  • Contracts
  • Department Of Defense
  • Energetic Materials
  • Equations
  • Equations Of State
  • Free Energy
  • Information Operations
  • Materials
  • Mechanics
  • Military Research
  • Phase Transformations
  • Thermodynamics
  • Three Dimensional

Readers

  • Calculus or Mathematical Analysis
  • Computational Fluid Dynamics (CFD)
  • Mathematical Modeling and Probability Theory.