Determination of Biaxial Residual Stresses by a Holographic-Hole Drilling Technique

[+] Author and Article Information
A. Makino, D. V. Nelson

Department of Mechanical Engineering, Stanford University, Stanford, CA 94305-4021

E. A. Fuchs, D. R. Williams

Sandia National Laboratories, Livermore, CA 94551-0969

J. Eng. Mater. Technol 118(4), 583-588 (Oct 01, 1996) (6 pages) doi:10.1115/1.2805960 History: Received June 07, 1994; Revised October 07, 1995; Online November 27, 2007


A technique is described for the rapid determination of residual stresses through the combined use of hole drilling and holographic interferometry. A small diameter blind hole is drilled into a part containing residual stresses and the displacement field caused by localized stress relief is registered using holographic interferometry instead of a strain gage rosette. The optical interference fringe pattern created in the hologram upon release of stress is analyzed by a fringe counting method that allows stresses to be computed quickly. A comparison of stresses determined by the holographic hole drilling technique with different known biaxial residual stresses is shown.

Copyright © 1996 by The American Society of Mechanical Engineers
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