Fracture and Yield Strengths of Composition B and TNT as a Function of Processing Conditions and Composition

Abstract

The uniaxial compressive strength and the yield strength as determined by confined triaxial compression (uniaxial strain) of Composition B were found to be increased by changes in processing conditions and composition. In addition, Young's modulus (slope of the linear portion of the stress versus strain curve) was also increased by the same changes. The uniaxial compressive strength and modulus were also found to depend on the position in the cast from which samples were taken for some casts. The results to date suggest that these effects are due primarily to changes in porosity and further that the changes in porosity are due to changes in processing conditions. Therefore, significant increases in strength and modulus may be accomplished by changes in processing conditions. The differences in the strengths of Composition B and TNT are also considered.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1991
Accession Number
ADA243673

Entities

People

  • D. A. Weigand
  • James O. Pinto

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Compressive Strength
  • Engineering
  • Equations
  • Explosives
  • Geometry
  • Grain Boundaries
  • Grain Size
  • Materials
  • Materials Science
  • Mechanical Properties
  • Modulus Of Elasticity
  • Munitions
  • Particle Size
  • Rdx
  • Standards
  • Tensile Stress
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Mechanical Engineering/Mechanics of Materials.