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Hole-drilling strain-gage method of measuring residual stresses

Authors indicate that this method permits the magnitudes and principal directions of residual stresses at the hole location to be determined

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Abstract

The hole-drilling strain-gage method of measuring residual stresses in elastic materials can be termed semidestructive if holes of very small diameters are used. The method permits the magnitudes and principal directions of residual stresses at the hole location to be determined. This is accomplished by means of an emirpically determined relation between the magnitudes and directions of the principal stresses and the strain relaxation about the hole as the hole is drilled. This relation was obtained for a nondimensional model of the hole-gage assembly in order to make the results independent of hole size. A generalization was postulated to extend the use of this calibrated solution to the measurement of residual stresses in all elastic, isotropic materials.

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References

  1. Kelsey, R. A., “Measuring Non-Uniform Residual Stresses by the Hole Drilling Method,”Proc. SESA, XIV (1),181–194 (1956).

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  2. Methar, J., “Determination of Initial Stresses by Measuring the Deformation Around Drilled Holes,”Trans. ASME,56,249–254 (1934).

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  3. Palermo, P. M., “An Evaluation of the Hole-Relaxation Method of Determining Surface Residual Stresses,” David Taylor Model Basin, Rpt 1742 (1963).

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Authors and Affiliations

  1. Schock and Vibration Branch, U. S. Naval Research Laboratory, Washington, D. C.

    N. J. Rendler (Research Engineer) & I. Vigness

Authors
  1. N. J. Rendler
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  2. I. Vigness
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I. Vigness was Head

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Rendler, N.J., Vigness, I. Hole-drilling strain-gage method of measuring residual stresses. Experimental Mechanics 6, 577–586 (1966). https://doi.org/10.1007/BF02326825

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  • DOI: https://doi.org/10.1007/BF02326825

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