Journal ArticleDOI
Towards RGB photoelasticity: Full-field automated photoelasticity in white light
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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.read more
Citations
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Journal ArticleDOI
RGB Photoelasticity: Review and Improvements
TL;DR: In this article, the main developments of RGB photoelasticity with reference to the maximum measurable retardation were considered and a new procedure based on the standard error function evaluated on a subset of the calibration array is also proposed and experimentally tested.
Journal ArticleDOI
Digital photoelasticity of glass: A comprehensive review
K. Ramesh,Vivek Ramakrishnan +1 more
TL;DR: The recent advances in digital photoelasticity have made it possible to use it conveniently for the stress analysis of articles and components made of glass as discussed by the authors, which necessitates different techniques and associated equipments.
Journal ArticleDOI
Noise removal in three-fringe photoelasticity by adaptive colour difference estimation
K. R. Madhu,K. Ramesh +1 more
TL;DR: In this article, a new colour difference formula is proposed with an additional term, which ensures continuity of fringe order data over the domain, and the new method is termed as refined TFP.
Journal ArticleDOI
Improved method for isochromatic demodulation by RGB calibration.
TL;DR: This work has improved the standard demodulation algorithm used in RGB calibration by changing the Euclidean cost function to a regularized one in which the fidelity term corresponds to the Euclidan distance between RGB triplets; the regularizing term forces piecewise continuity for the isochromatic retardation.
Journal ArticleDOI
Phase shifting photoelasticity in white light
TL;DR: In this article, the general characteristics of phase shifting photoelasticity in the colour domain were investigated, focusing on the influence of spectral content of the light source, the spectral response of the colour camera filters, the dispersion of the birefringence and the error of quarter wave plates.
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
Eann A. Patterson,Z F Wang +1 more
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
Arkady Voloshin,C. P. Burger +1 more
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
F. W. Hecker,B. Morche +1 more
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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Towards full field automated photoelastic analysis of complex components
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Half-fringe photoelasticity: A new approach to whole-field stress analysis
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