PlumX Metrics
Embed PlumX Metrics

Measuring Inaccessible Residual Stresses Using Multiple Methods and Superposition

Experimental Mechanics, ISSN: 0014-4851, Vol: 51, Issue: 7, Page: 1123-1134
2011
  • 97
    Citations
  • 0
    Usage
  • 160
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    97
    • Citation Indexes
      97
  • Captures
    160

Article Description

The traditional contour method maps a single component of residual stress by cutting a body carefully in two and measuring the contour of the cut surface. The cut also exposes previously inaccessible regions of the body to residual stress measurement using a variety of other techniques, but the stresses have been changed by the relaxation after cutting. In this paper, it is shown that superposition of stresses measured post-cutting with results from the contour method analysis can determine the original (pre-cut) residual stresses. The general superposition theory using Bueckner's principle is developed and limitations are discussed. The procedure is experimentally demonstrated by determining the triaxial residual stress state on a cross section plane. The 2024-T351 aluminum alloy test specimen was a disk plastically indented to produce multiaxial residual stresses. After cutting the disk in half, the stresses on the cut surface of one half were determined with X-ray diffraction and with hole drilling on the other half. To determine the original residual stresses, the measured surface stresses were superimposed with the change stress calculated by the contour method. Within uncertainty, the results agreed with neutron diffraction measurements taken on an uncut disk. © 2010 The Author(s).

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know