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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 29 — Oct. 10, 2011
  • pp: 5721–5727

Metrological study for the optimal selection of the photoelastic model in transmission photoelasticity

Manuel Solaguren-Beascoa Fernández  »View Author Affiliations


Applied Optics, Vol. 50, Issue 29, pp. 5721-5727 (2011)
http://dx.doi.org/10.1364/AO.50.005721


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Abstract

In transmission photoelasticity, stresses and strains are not directly measured on the real piece, but on a photoelastic model. To improve accuracy, the photoelastic material type, size of the model, its thickness, and the applied load must be chosen properly. In this paper, the influence of selectable parameters in a photoelastic transmission analysis has been studied through the evaluation of measurement uncertainties. The experimental data and further study of a generic functional relationship, representative of a stress-separation technique, show that, for a given photoelastic material, the model of minimum uncertainty of measurement is the one whose ratio load/dimension is the maximum allowed by the data- acquisition technique used. The thickness affects only the amount of material used. Therefore, any size of the model can achieve maximum accuracy, provided that it is subjected to the greatest possible load within its elastic range.

© 2011 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: May 17, 2011
Revised Manuscript: July 14, 2011
Manuscript Accepted: July 14, 2011
Published: October 6, 2011

Citation
Manuel Solaguren-Beascoa Fernández, "Metrological study for the optimal selection of the photoelastic model in transmission photoelasticity," Appl. Opt. 50, 5721-5727 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-29-5721

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