Strength of an Explosively-Formed Bond

Abstract

A test fixture used to determine the shear strength of an explosively-formed bond between a liner and gun tube is described. Tests were carried out in which the liner material yielded before the bond was broken. A finite-element analysis of the deformation indicated that the bond shear strength was in excess of 45 ksi. Internal stress measurements made by x-ray diffraction indicated the presence of residual hoop and radial stresses produced by the explosive bonding process. The hoop stresses at and near the bore were comparable to those achieved with the autofrettage process in a larger gun tube. The residual radial stress, along with frictional forces, may account for a large portion of the bond shear strength.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2006
Accession Number
ADA455905

Entities

People

  • Daniel J. Snoha
  • Michael A. Minnicino
  • William S. de Rosset

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Bonding
  • Diffraction
  • Explosive Welding
  • Explosives
  • Finite Element Analysis
  • Materials
  • Measurement
  • Military Research
  • Radial Stress
  • Refractory Metals
  • Residual Stress
  • Residuals
  • Shear Strength
  • Stresses
  • Test Fixtures
  • X Rays
  • X-Ray Diffraction

Readers

  • Materials Science (Mechanical Engineering).
  • Surface Coatings Technology.
  • ballistics.