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Proceedings Paper

Residual stress measurement using a radial in-plane speckle interferometer and laser annealing: preliminary results
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Paper Abstract

This paper presents a combined system based on digital speckle pattern interferometry and laser annealing to determine residual stresses in ductile materials. The system allows the measurement of the radial in-plane displacement field generated when a specimen subjected to residual stresses is locally heated. This novel approach for measuring residual stresses has the advantage of being nondestructive and can be easily applied to in situ tests. The description of the combined system is followed by the presentation of preliminary results which illustrate the ability of both techniques to identify residual stress fields and also to determine their principal directions.

Paper Details

Date Published: 30 May 2003
PDF: 7 pages
Proc. SPIE 5144, Optical Measurement Systems for Industrial Inspection III, (30 May 2003); doi: 10.1117/12.488195
Show Author Affiliations
Matias R. Viotti, Univ. Nacional de Rosario (Argentina)
Ricardo Suterio, Univ. Federal de Santa Catarina (Brazil)
Armando Albertazzi Jr., Univ. Federal de Santa Catarina (Brazil)
Guillermo H. Kaufmann, Univ. Nacional de Rosario (Argentina)

Published in SPIE Proceedings Vol. 5144:
Optical Measurement Systems for Industrial Inspection III
Wolfgang Osten; Malgorzata Kujawinska; Katherine Creath, Editor(s)

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