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Experimental Mechanics

, Volume 19, Issue 1, pp 23–27 | Cite as

The alignment error of the hole-drilling method

The stress-strain relationship for the eccentric hole case has been derived and expressed in terms of the off-center distance (hole center to strain-gage-rosette center) and the polar angle
  • Hsin-Pang Wang
Article

Abstract

The hole-drilling method is one technique for measuring residual stresses. All the existing equations for the calculation of residual stresses are based on the assumption that the hole is located at the rosette center. In this paper, the stress-strain relationship for the eccentric hole case has been derived and expressed in terms of the off-center distance and the polar angle. The alignment error is studied and demonstrated by two examples, namely, a uniaxial-stress field and a hydrostatic-stress field. The error analysis yielded the following typical result: ten percent of hole radius off-center will yield about five-percent measurement error for the standard rosette (EA-09-062-RE-120).

Keywords

Mechanical Engineer Residual Stress Measurement Error Fluid Dynamics Error Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    Mathar, J., “Determination of Initial Stresses by Measuring the Deformation Around Drilled Holes,”Trans. ASME,56,245–254 (1934).Google Scholar
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    Riparbelli, C., “A Method for the Determination of Initial Stresses,”Proc. SESA,VIII (1),173–196 (1950).Google Scholar
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    Kelsey, R.A., “Measuring Non-uniform Residual Stresses by the Hole Drilling Method,”Proc. SESA,XIV (1),181–194 (1956).Google Scholar
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    Rendler, N.J. andVigness, I., “Hole-drilling Strain-gage Method for Measuring Residual Stresses,”Experimental Mechanics,6 (12),577–586 (Dec.1966).CrossRefGoogle Scholar
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    Bush, A.J. andKromer, J.F., “Simplification of the Hole-Drilling Method of Residual Stresses Measurement,”Trans. ISA,12 (3),249–259 (1973).Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 1979

Authors and Affiliations

  • Hsin-Pang Wang
    • 1
  1. 1.Corporate Research and DevelopmentGeneral Electric CompanySchenectady

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