Measurement of Non-Uniform Residual Stresses Using the Hole-Drilling Method. Part II—Practical Application of the Integral Method

[+] Author and Article Information
G. S. Schajer

Weyerhaeuser Technology Center, Tacoma, WA 98477

J. Eng. Mater. Technol 110(4), 344-349 (Oct 01, 1988) (6 pages) doi:10.1115/1.3226060 History: Received November 04, 1987; Online October 22, 2009


The Integral Method for calculating non-uniform residual stress fields using strain relaxation data from the incremental hole-drilling method is examined in detail. Finite element calculations are described which evaluate the calibration coefficients required for practical applications of the method. These calibration data are tabulated for a range of hole sizes and depths. It is found that the hole drilling method is not well adapted to measuring stresses remote from the surface, and a theoretical depth limit for stress measurements of 0.5 of the mean radius of the strain gauge rosette, rm , is identified. A practical depth limit is in the range 0.3–0.4 rm .

Copyright © 1988 by ASME
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