Crack Closure and Fatigue Crack Growth in 2219-T851 Aluminum Alloy

Abstract

The effects of specimen thickness, stress ratio (R) and maximum stress intensity factor (K sub max) on crack closure (or opening) and on fatigue crack growth kinetics were studied using a 2219-T851 aluminum alloy. The crack length and the occurrence of crack closure were measured by an electrical potential method. The experimental work was carried out within the framework of linear-elastic fracture mechanics.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1976
Accession Number
ADA033082

Entities

People

  • K. D. Unangst
  • Robert P. Wei
  • T. T. Shih

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Air Force
  • Aluminum Alloys
  • Crack Tips
  • Data Reduction
  • Diagrams
  • Experimental Data
  • Fracture (Mechanics)
  • Geometry
  • Kinetics
  • Materials
  • Measurement
  • Mechanics
  • Monitoring
  • Plastic Explosives
  • Schematic Diagrams
  • Stress Intensity Factors
  • United States Government

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Structural Dynamics.
  • Thin Film Deposition Science.