The Influence of Secondary Bending on Fatigue Life Improvement in Bolted Joints

Abstract

Secondary bending often occurs in structural joints, and to assess its influence on the fatigue life enhancement technique of hole cold-expansion, an experimental program has been undertaken. The results indicate that the effect of cold working is substantially reduced in specimens with secondary bending. For any marked extension in fatigue life, additional treatments, for example the combination of cold expansion and interference fit, are required. Bending fatigue, Holes(openings), Bolted joints, Expansion, Fatigue life, Cold working.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1993
Accession Number
ADA272903

Entities

People

  • R. L. Evans

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Aircrafts
  • Airframes
  • Alloys
  • Bolted Joints
  • Civil Aviation
  • Cold Working
  • Engineering
  • Fasteners
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Materials
  • Mechanical Engineering
  • Mechanical Properties
  • Surface Finishing
  • Tensile Strength
  • Two Dimensional

Readers

  • Circadian Sleep-Wake Regulation and Chronobiology
  • Materials Science (Mechanical Engineering).
  • Thin Film Deposition Science.