Rapid Measurement of Residual Stress by Computerized Shearography

Paper #:
  • 960974

Published:
  • 1996-02-01
Citation:
Hung, Y., Long, K., Wang, J., and Zhang, X., "Rapid Measurement of Residual Stress by Computerized Shearography," SAE Technical Paper 960974, 1996, https://doi.org/10.4271/960974.
Pages:
9
Abstract:
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.
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