Accession Number:

ADA272903

Title:

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

Descriptive Note:

Corporate Author:

AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s):

Report Date:

1993-08-01

Pagination or Media Count:

39.0

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, Holesopenings, Bolted joints, Expansion, Fatigue life, Cold working.

Subject Categories:

  • Fabrication Metallurgy
  • Couplers, Fasteners and Joints
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE