Characterization of Candidate Materials for Composite Cartridge Case

Abstract

Cased telescoped ammunition designs were developed for the Multi-Role Armament and Ammunition System that employed a composite cartridge case. Three candidate composite material systems are being considered for the application--50% chopped fiberglass/Nylon 12, 30% chopped fiberglass/ULTEM (a registered trademark of GE Plastics Corp.), and a continuous fiberglass/urethane. Each of these material systems was subjected to preliminary mechanical testing in order to characterize their basic material properties and to support finite-element modeling of the cartridge case/gun chamber during the firing cycle. Basic mechanical properties such as stress-strain curves, Poisson's ratio, and residual plastic deformation after unloading were obtained and are presented in this report.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2004
Accession Number
ADA428387

Entities

People

  • Aristedes Yiournas
  • Brian M. Powers
  • Travis A. Bogetti
  • William H. Drysdale

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Cartridge Cases
  • Composite Materials
  • Coordinate Systems
  • Fiberglass
  • Fibers
  • Glass Fibers
  • Gun Chambers
  • Materials
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Military Research
  • Plastics
  • Stress Concentration
  • Stress Strain Relations
  • Stresses

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials
  • ballistics.

Technology Areas

  • Space