Residual stress measurement by laser annealing and speckle interferometry

James E. Millerd; James D. Trolinger; Chandra S. Vikram; Martin J. Pechersky

doi:10.1117/12.259080

14 November 1996 Residual stress measurement by laser annealing and speckle interferometry

James E. Millerd, James D. Trolinger, Chandra S. Vikram, Martin J. Pechersky

Proceedings Volume 2945, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware; (1996) https://doi.org/10.1117/12.259080
Event: Nondestructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1996, Scottsdale, AZ, United States

Abstract

We present a design for a compact residual stress measurement sensor based on laser annealing and laser speckle interferometry. The instrument integrates laser diodes, holographic optical elements, a compact CO₂ laser, and advanced data reduction techniques to provide quantitative measurements. In this paper we present a review of residual stress measurement using laser annealing, details of our design and preliminary measurement data.

Citation Download Citation

James E. Millerd, James D. Trolinger, Chandra S. Vikram, and Martin J. Pechersky "Residual stress measurement by laser annealing and speckle interferometry", Proc. SPIE 2945, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware, (14 November 1996); https://doi.org/10.1117/12.259080

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