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Proceedings Paper

Preliminary evaluation of the Optical Rosette: a portable device for stress measurement with ESPI
Author(s): Armando Albertazzi; Daniel Willemann; Celso L. N. Veiga
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Paper Abstract

This paper presents a new kind of portable device, named Optical Rosette, suitable for on-field stress measurement using a Radial In-Plane (RIP) Interferometer and Electronic Speckle Pattern Interferometry (ESPI). This device is capable to replace a conventional strain gauge rosette with many advantages. Since this device is sensitive to the in-plane radial displacement component, both in-plane translations, and the complete stress state at a given point, can easily be measured simultaneous and accurately. The basic measurement principles, as well as the mathematical models for rigid body displacements, strains and stresses measurement, are presented. A prototype of the Optical Rosette was built and its performance was preliminarily evaluated in laboratory conditions and on-field measurement.

Paper Details

Date Published: 29 July 2002
PDF: 12 pages
Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); doi: 10.1117/12.484505
Show Author Affiliations
Armando Albertazzi, Univ. Federal de Santa Catarina (Brazil)
Daniel Willemann, Univ. Federal de Santa Catarina (Brazil)
Celso L. N. Veiga, Univ. Federal de Santa Catarina (Brazil)


Published in SPIE Proceedings Vol. 4900:
Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life
Yuri V. Chugui; Sergei N. Bagayev; Albert Weckenmann; P. Herbert Osanna, Editor(s)

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