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Automatic determination of isostatics in two-dimensional photoelasticity

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Quiroga Mellado, Juan Antonio and González Cano, Agustín (2000) Automatic determination of isostatics in two-dimensional photoelasticity. Measurement Science and Technology, 11 (3). pp. 259-265. ISSN 0957-0233

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Official URL: http://dx.doi.org/10.1088/0957-0233/11/3/313


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Abstract

We present a method for automatic determination of isostatics from the photoelastic measurement of isoclinics obtained by phase-shifting techniques. The method is based on the integration of two difference equations by use of a multigrid algorithm, using a quality map obtained from experimental data by checking the consistency of the generated experimental differences. So-called isostatic sulfaces are determined and, from them, the isostatics net can be drawn with any prescribed density and resolution. The algorithm is very robust and fast and has proven very efficient for working with real photoelastic fringe patterns.


Item Type:Article
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© 2000 IOP Publishing Ltd.
We wish to acknowledge the support of a post-doctoral grant from the Universidad Complutense de Madrid, the ‘Becas Internacionales Flores-Valles’ program, Spain, and the Centro de Investigaciones en Óptica (CIO), León, México. This work has been partially supported by the project TAP 98-0701/97 of the CICyT (Comisión Interministerial de Ciencia y Tecnología).

Uncontrolled Keywords:Photoelasticity, Isostatics, Phase Shifting, Multigrid, Fringe-Pattern Analysis
Subjects:Sciences > Physics > Optics
ID Code:23210
Deposited On:19 Oct 2013 16:01
Last Modified:07 Feb 2014 10:58

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