Journal ArticleDOI
Towards RGB photoelasticity: Full-field automated photoelasticity in white light
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
High Frequency Quantitative Photoelasticity Applied to Jet Engine Components
TL;DR: In this article, the application of digital photoelasticity in high frequency blade tests has been developed as a robust methodology that can be applied using standard equipment or using solid-state polariscopes.
Journal ArticleDOI
New Initiatives on Comparison of Whole-field Experimental and Numerical Results
TL;DR: In this paper, a simple approach to plot photoelastic fringes in grey scale and also in colour from finite element (FE) results is presented for better recognition and comparison with experiments.
Journal ArticleDOI
A low-level stress measurement method by integrating white light photoelasticity and spectrometry
TL;DR: In this article, a 3D systematic relationship of transmissivity with stress and wavelength was established by analyzing the periodic extinction phenomenon of isochromatic fringe pattern obtained from white light photoelasticity.
Journal ArticleDOI
A simple method for the digital determination of the photoelastic fringe order
TL;DR: In this article, a new and simple approach to the digital determination of a photoelastic fringe order using two different loads is proposed, where the relationship between the intensity values of light and the isochromatic fringe orders generated from two different loadings is derived.
Journal ArticleDOI
Integration of spectral and phase-stepping methods in photoelasticity
Eann A. Patterson,Z F Wang +1 more
TL;DR: The integration of the resultant methodology for spectral analysis with phase stepping is used to achieve automatic analysis of photoelastic fringe patterns containing a minimum fringe order of no greater than four, and without the requirement for a zero-order fringe order to be present in the pattern.
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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Three fringe photoelasticity ‐ use of colour image processing hardware to automate ordering of isochromatics
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Half-fringe photoelasticity: A new approach to whole-field stress analysis
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