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Experimental Mechanics

, Volume 35, Issue 2, pp 124–129 | Cite as

Enhanced sensitivity residual-stress measurements using taper-hole drilling

  • M. Tootoonian
  • G. S. Schajer
Article

Abstract

A novel method for enhancing the strain sensitivity of the hole-drilling method for measuring uniform residual stresses is examined. Such enhanced strain sensitivity is important because it improves the accuracy of the residual-stress evaluation. The new method involves enlarging the effective hole size by drilling a reverse taper hole. A simple practical technique for drilling reverse taper holes is described. The strain sensitivity for this new method is compared with that of the conventional hole-drilling method. Experimental results show excellent correspondence with theoretical results. The reasons for the sensitivity improvement are explained.

Keywords

Mechanical Engineer Drilling Fluid Dynamics Theoretical Result Strain Sensitivity 
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

  1. 1.
    “Standard Test Method for Determining Residual Stresses by the Hole-drilling Strain Gage Method,” ASTM Standard E837-92 (1992).Google Scholar
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    Measurements Group, Inc., “Measurement of Residual Stresses by the Hole-Drilling Strain Gauge Method,” Tech Note TN-503-4, Measurements Group, Inc., (1993).Google Scholar
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Copyright information

© Society for Experimental Mechanics, Inc. 1995

Authors and Affiliations

  • M. Tootoonian
    • 1
  • G. S. Schajer
    • 1
  1. 1.Department of Mechanical EngineeringUniversity of British ColumbiaVancouverCanada

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