An Investigation of the Recovery Processes in 7075-T651 Aluminum Responsible for a Stress Decay during Dynamic Loading Histories.

Abstract

This thesis investigates stress relaxation, strain softening, strain hardening and anelastic behavior as potential recovery processes in 7075-T651 aluminum alloy. A series of tests were conducted utilizing specimens of 7075-T651 aluminum alloy as a representative aircraft structural materials. The tests utilized both single and dual amplitude cyclic loading histories. The recovery mechanism felt to cause the observed stress decay was represented as an exponential decay due to an anelastic strain recovery behavior.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA039653

Entities

People

  • Richard Allen Bentley

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Aluminum
  • Aluminum Alloys
  • Creep
  • Crystal Lattices
  • Elastic Properties
  • Fatigue Life
  • Hardening
  • Materials
  • Materials Science
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Properties
  • Softening
  • Strain Hardening
  • Stress Strain Relations
  • Yield Strength

Readers

  • Control Systems Engineering.
  • Materials Science and Engineering.
  • Mathematics or Statistics