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Journal ArticleDOI

Towards RGB photoelasticity: Full-field automated photoelasticity in white light

Augusto Ajovalasit, +2 more
- 01 Sep 1995 - 
- Vol. 35, Iss: 3, pp 193-200
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TLDR
A new full-field method for the automatic analysis of isochromatic fringes in white light, named RGB photoelasticity, which makes it possible to determine retardations uniquely in the range of 0–3 fringe orders.
Abstract
In this paper a new full-field method for the automatic analysis of isochromatic fringes in white light is presented. The method, named RGB photoelasticity, eliminates the typical drawbacks of the classical approach to photoelasticity in white light which requires a subjective analysis of colors and an experienced analyst to acquire and interpret the results.

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Citations
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Journal ArticleDOI

Whole-field digital measurements of isochromatics and isoclinics in photoelastic coatings

TL;DR: In this paper, a two-wavelength method and polarization-stepping method are introduced to automate the determination of fringe order and principal stress direction in photoelastic-coating fringe patterns.
Journal ArticleDOI

Elliptically polarized white light photoviscoelastic technique and its application to viscoelastic fracture

TL;DR: In this paper, the authors demonstrate the successful application of photoviscoelastic technique using elliptically polarized white light to the stress field evaluation of the crack growth in a viscoelastic strip.
Journal ArticleDOI

Photoelastic Analysis from a Single Image Using Elliptically Polarized Tricolored Light.

TL;DR: Using an elliptically polarized tricolored light and color image processing, the fringe order and the principal direction of birefringence are obtained from data of a color image obtained by a single shot as discussed by the authors.
Journal ArticleDOI

Defense hole design for a shear dominant loaded plate

TL;DR: In this article, the authors designed an optimum Defense Hole System (DHS) for a large plate with a circular hole in shear dominant-load range, which reduced the stress concentration associated with circular holes for tensile/shear ratio ranging from 0% to 25% by 13.5% to 16.67%.
References
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Book

Handbook on experimental mechanics

TL;DR: The "Handbook on Experimental Mechanics" as mentioned in this paper is a comprehensive reference in the field of experimental mechanics and has been used extensively in the past 50 years for a wide range of applications.
Journal ArticleDOI

Towards full field automated photoelastic analysis of complex components

TL;DR: The design of a automated system for photoelastic analysis of complex components and the potential of the system for providing detailed data over the full field of view is demonstrated by the analysis of a slice from a model of a bolt.
Journal ArticleDOI

Half-fringe photoelasticity: A new approach to whole-field stress analysis

TL;DR: In this paper, the half-fringe photoelasticity (HFP) method is proposed for whole-field stress analysis based on a symbiosis of two techniques, namely classical photo elasticity and modern digital image analysis.
Book ChapterDOI

Computer-Aided Measurement of Relative Retardations in Plane Photoelasticity

TL;DR: In the following a method is proposed, which enables the complete extraction of photoelastic information at local picture elements (pixel) from series of related images of the same stress state, and was modified to meet the special requirements ofphotoelastic patterns.
Journal ArticleDOI

Photoelastic measurements by means of computer-assisted spectral-contents analysis

TL;DR: In this paper, a new method of photoelastic measurement has been developed, where the light emerging from a polariscope is spectrally separated and projected on a photodiode array.
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