A Nonlinear Constitutive Relationship for Composite Propellants

Abstract

A nonlinear constitutive relationship is developed for uniaxial stress-strain conditions that are shown to fit experimental data over a wide range of strain rates and temperatures. The total stress-strain nonlinearity of particulate filled composites may be represented by statistical parameters similar to those used by Farris to describe the dilatation-strain behavior. The dilatational behavior of composite propellants may be predicted from the stress- strain data and the total filler content. The relationships derived in this report will enable one to investigate the nonlinear behavior at strain-rates and temperatures where it is very difficult, if not impossible, to obtain measured dilatation data.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA056465

Entities

People

  • Donald L. Martin Jr.

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Agreements
  • Binders
  • Composite Materials
  • Composite Propellants
  • Elastomers
  • Equations
  • Experimental Data
  • Materials
  • Mechanical Properties
  • Particle Size
  • Particles
  • Propellant Grains
  • Propellants
  • Solid Propellants
  • Strain Rate
  • Stress Strain Relations
  • Stresses

Readers

  • Mechanical Engineering/Mechanics of Materials.