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
Accurate Displacement Measurement by Correlation of Colored Random Patterns
TL;DR: In this article, the use of colored random patterns for the calculation of the correlation coefficient is proposed to improve the accuracy of the digital image correlation technique for displacement measurements, which is effective in the fields of experimental mechanics and experimental stress analysis.
Journal ArticleDOI
On image analysis for Birefringence measurements in photoelasticity
TL;DR: A number of techniques have been proposed during the past twenty years that have the common purpose of automating photoelastic fringe analysis, including spectral contents analysis, phase-shifting or stepping and Fourier transform procedures, and all of the analytical methods suffer similar disadvantages.
Journal ArticleDOI
RGB photoelasticity applied to the analysis of membrane residual stress in glass
TL;DR: In this paper, the determination of membrane residual stresses in glass plates by automatic digital photoelasticity in white light (RGB photo elasticity) has been proposed, which can effectively replace manual methods based on white light, which are currently provided by some technical standards.
Journal ArticleDOI
Photoelastic Analysis with a Single Tricolor Image
TL;DR: It is emphasized that this method can be applicable to time varying phenomena in which good repeatability and reproducibility of experiments are not expected, since multiple exposures are not necessary for sufficient data acquisition in the completion of stress analysis.
Journal ArticleDOI
Absolute determination of the isochromatic parameter by loadstepping photoelasticity
M. J. Ekman,A. D. Nurse +1 more
TL;DR: In this article, a new approach to full-field automated photoelasticity is presented in which a circular polariscope is used to enable the isochromatic phase value (α) to be determined unambiguously and without input of a known isochrome value obtained using an auxiliary technique.
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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