Investigation of Titanium Alloys under Biaxial Impact Loading.

Abstract

Ti-6Al-4V titanium alloy was subjected to three heat treatment conditions. Ballistic tests at ARL have shown differences in the ballistic performance, if annealed above the beta transus temperature. Mechanical tests under uniaxial compression as well as biaxial compression shear-stress states and high strain rates in the range of 10(exp 2)/s were performed at TU Chemnitz. Additionally, quasistatic compression tests were performed. Scanning electron microscopy was used to correlate deformation structures of shear cracks from ballistic tests with that of laboratory shear specimens. Indications of interdependencies between the ballistic performance and mechanical behavior under compression/shear loading of different heat treated titanium targets were noted, e. g. dynamic strength and sensitivity to adiabatic shear failure.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 07, 1997
Accession Number
ADA329151

Entities

People

  • Lothar W. Meyer
  • Lutz Krueger

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerospace Industry
  • Compressive Strength
  • Electron Microscopy
  • Failure Mode And Effect Analysis
  • Heat Treatment
  • Materials
  • Materials Science
  • Mechanical Working
  • Mechanics
  • Microscopy
  • Plastic Deformation
  • Strain Gages
  • Stress Strain Relations
  • Test And Evaluation
  • Test Methods
  • Titanium Alloys
  • Yield Strength

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Powder metallurgy of Titanium alloys.
  • ballistics.

Technology Areas

  • Microelectronics