Industrial applications of residual stress determination using 2D in-plane sensitive fiber ESPI and hole drilling

Anand Krishna Asundi; Jingbo Zhang

doi:10.1117/12.347761

7 May 1999 Industrial applications of residual stress determination using 2D in-plane sensitive fiber ESPI and hole drilling

Anand Krishna Asundi, Jingbo Zhang

Author Affiliations +

Proceedings Volume 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99); (1999) https://doi.org/10.1117/12.347761
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '99), 1999, Yokohama, Japan

Abstract

A fiber electronic speckle pattern interferometry (ESPI) system composed by two sets of Leendertz dual-beam illumination arranged in perpendicular directions is applied to determine residual stresses of materials combining with the blind-hole-drilling method. Although high stress concentration and severe surface decorrelation resulted from hole-drilling process would affect the fringe visibility considerably, the system still generates satisfactory fringe patterns from the point of view of data retrieval. Simple approaches to interpret values of uniaxial and uniform residual stresses from displacement sensitive fringe contours are described and demonstrated for industrial applications.

Citation Download Citation

Anand Krishna Asundi and Jingbo Zhang "Industrial applications of residual stress determination using 2D in-plane sensitive fiber ESPI and hole drilling", Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); https://doi.org/10.1117/12.347761

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