Report of Findings: Engineering Practices Study on Failure Analysis of NSN 5340-00-136-9872 Grooved Coupling Clamp

Abstract

Failure analysis of an aircraft exhaust pipe clamp indicated that the clamp material was significantly and seriously outside the specification requirements and that the clamp failed in stress corrosion mode. Non-compliance with the material requirements was the most important factor in the formation and subsequent propagation of stress corrosion cracks. Improved inspection requirements and consideration of a material with greater resistance to stress corrosion cracking are recommended. Keywords: Clamp, Failure analysis, Stainless steel, Stress corrosion, Fastenings.

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Document Details

Document Type
Technical Report
Publication Date
Oct 03, 1988
Accession Number
ADA204710

Entities

People

  • Bohdan Hasiuk

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Classification
  • Corrosion
  • Corrosion Resistant Steels
  • Couplings
  • Cracks
  • Electron Microscopes
  • Engineering
  • Exhaust Pipes
  • Failure Analysis
  • Failure Mode And Effect Analysis
  • Helicopters
  • Materials
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Two Dimensional
  • V Band

Fields of Study

  • Engineering

Readers

  • Materials Science
  • Materials Science (Mechanical Engineering).
  • Structural Health Monitoring of Composite Structures.