Ballistic Evaluation of 7085 Aluminum

Abstract

The U.S. Army Research Laboratory (ARL) evaluated the ballistic performance of two tempers of aluminum alloy (AA) 7085 produced by Alcoa. The tempers included a high-strength variant, 7085-T7E01, for utilization as an appliqu against direct-fire threats and a lower strength, higher ductility variant, 7085-T7E02, for underbody blast protection kits. Ballistic evaluation was performed using armor-piercing and fragment-simulating projectiles to determine the V50 ballistic protection limit (V50) for various thicknesses of each temper. The V50 was then compared to other ballistic-grade aluminum alloys, namely AA7039 and AA2139. The results of these tests were used to derive the acceptance tables included in the new military specification, MIL-DTL-32375(MR), created for AA7085.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2012
Accession Number
ADA562407

Entities

People

  • Denver Gallardy

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Aircraft Industry
  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Chemistry
  • Elements
  • Explosive Devices
  • Explosives
  • Materials
  • Military Research
  • Plastic Explosives
  • Projectiles
  • Specifications
  • Standards
  • Test And Evaluation
  • Thickness
  • X Rays

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Unmanned Aerial System (UAS) Autonomous Capabilities and Mission Reconnaissance.
  • ballistics.