Materials Analysis of a Fatigue Testing Mandrel

Abstract

A materials characterization and failure analysis was performed on a fatigue testing mandrel that ailed abruptly in service after a total of only 5061 cycles. The mandrel was reportedly composed of marage 250 grade steel, and the raw material was specified to be delivered in the solution-annealed condition. Subsequent processing was to include rough machining to the approximate mandrel dimensions, an aging treatment at 900 deg F for four hours, and finish machining.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1991
Accession Number
ADA244344

Entities

People

  • G. Young
  • J. Senick
  • Michael Brodsky

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Chemical Analysis
  • Diffraction
  • Diffraction Analysis
  • Engineering
  • Fatigue Life
  • Hardness
  • Heat Treatment
  • Materials
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Secondary Emission
  • Standards
  • Test Methods
  • X Rays
  • X-Ray Diffraction

Readers

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