Journal of Engineering Materials and Technology

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The Compliance Method for Measurement of Near Surface Residual Stresses—Analytical Background
Introducing a thin cut from the surface of a part containing residual stresses produces a change in strain on the surface. When the strains are measured as a function of the depth of the cut, residual...

Data Management for the Evaluation of Residual Stresses by the Incremental Hole-Drilling Method
The semidestructive incremental hole-drilling method commonly used to evaluate residual stresses is exceedingly sensitive to experimental errors, with sensitivity increasing as hole depth increases. T...

J. Eng. Mater. Technol. / Volume 116 / Issue 4 / RESEARCH PAPERS

The Compliance Method for Measurement of Near Surface Residual Stresses—Application and Validation for Surface Treatment by Laser and Shot-Peening

J. Eng. Mater. Technol. -- October 1994 -- Volume 116, Issue 4, 556 (5 pages)
doi:10.1115/1.2904328

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ABSTRACT

Author(s):
W. Cheng and I. Finnie
Mechanical Engineering Department, University of California, Berkeley, Berkeley, CA, 94720

M. Gremaud
Departement des Matériaux, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland

A. Rosselet
Mechanical Technology, Sulzer-Innotec, 8401 Winterthur, Switzerland

R. D. Streit
Lawrence Livermore National Laboratory, Livermore, CA 94550

Residualstresses due to surface treatment are measured using the compliancemethod. The method makes use of the strains measured onthe surface while a cut is extended progressively along aplane of interest. The experimental results for a shot peenedspecimen show good agreement with those obtained by the X-raymethod. This experiment demonstrates that the compliance method is accurateand capable of measuring residual stresses which vary rapidly overa depth of less than 50 µm. Good general agreementwith results by the X-ray method is also obtained fora laser treated specimen. Some advantages and disadvantages of thepresent method relative to hole-drilling, layer removal and X-ray methodsare discussed.