A Comparison of Residual Stress Measuring Techniques: Their Strengths and Weaknesses

Abstract

Ongoing in-house work on the measurement of residual stress in Army Materiel by both X-ray and strain gage mechanical relaxation methods is presented and compared. The X-ray portion includes problems associated with the calculation of stresses in highly textured samples while the strain gage portion describes effects produced by various mechanical methods to partially relieve the strain fields sensed by the active gage elements. Comparisons are also made of the errors introduced by considering the active element in the strain gage rosette as a point gage instead of one with finite length.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1980
Accession Number
ADA088409

Entities

People

  • Fee M. Lee
  • Fred M. Witt
  • Walter M. Rider

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Biaxial Stresses
  • Electric Discharges
  • Engineered Materials
  • Equations
  • Geometry
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanics
  • Modulus Of Elasticity
  • Residual Stress
  • Standards
  • Strain Gages
  • Stress Concentration
  • Stress Strain Relations
  • Stresses
  • X Rays

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Technical Research and Report Writing.