This paper presents an optical method for evaluating residual stresses. The approach is based on measuring the deformation due to the relief of stress produced by a blind-hole drilling technique. The deformation is rapidly measured by shearography. Unlike the strain gage method, this method does not require mounting strain gages /transducers. A rapid process for detection of residual stress using a micro-indentation technique is also present. The method is practical for employment in a production/field environment.
Rapid Measurement of Residual Stress by Computerized Shearography
Sae Technical Papers
International Congress & Exposition ; 1996
1996-02-01
Conference paper
English
Drilling , Optics , Personnel , Production
Rapid measurement of residual stress by computerized shearography
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