Determination of residual stresses by means of a digital speckle pattern interferometry and local heating combined technique

Matias R. Viotti; Guillermo H. Kaufmann; E. A. Fancello; A. Gaston; O. Moeller

doi:10.1117/12.591609

21 October 2004 Determination of residual stresses by means of a digital speckle pattern interferometry and local heating combined technique

Matias R. Viotti, Guillermo H. Kaufmann, E. A. Fancello, A. Gaston, O. Moeller

Author Affiliations +

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.591609
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

This paper presents a combined system based on DSPI and local heating, which alows the evaluation of residual stresses. To determine the residual stress values, a finite element analysis (FEA) of the thermomechanical process is carried out. The feasibility of this approach is demonstrated by comparing the results obtained from measurements in a preloaded specimen and the stress values introduced in it.

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Matias R. Viotti, Guillermo H. Kaufmann, E. A. Fancello, A. Gaston, and O. Moeller "Determination of residual stresses by means of a digital speckle pattern interferometry and local heating combined technique", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.591609

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