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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Proceedings ArticleDOI
Elliptically polarized white-light photoviscoelastic technique and its application
Satoru Yoneyama,Masahisa Takashi +1 more
TL;DR: In this article, photo viscoelastic technique using elliptically polarized white light to the stress field evaluation of the crack growth in a viscocelastic strip was demonstrated. And the proposed technique, which can determine both iso chromatic and iso clinic parameters simultaneously from a single color image, was evaluated from the experimental results using a method based on least-squares.
Proceedings ArticleDOI
Simulation of fringe order of photoelastic samples based on Neural Network
TL;DR: In this paper , the problem of traditional photoelastic fringe recognition and automatic grading through the BP artificial neural network was solved by solving the nonlinear mapping relationship between the RGB value of each point on the photo-elastic picture and the fringe order of the corresponding point.
Numerical evaluation of the strain energy release rate with orientation and position of a crack near a bimaterial interface numerička ocena brzine oslobađanja energije deformacije sa orijentacijom i poloajem prsline blizu interfejsa bimaterijala
TL;DR: In this article, the finite element method and fracture mechanics concept were used to study the interfacial fracture of bimaterial structure and the effects of mechanical materials properties, position and orientation between crack and bimmaterial interface are presented.
Proceedings ArticleDOI
Simulation of fringe order of photoelastic samples based on Neural Network
TL;DR: In this paper , the problem of traditional photoelastic fringe recognition and automatic grading through the BP artificial neural network was solved by solving the nonlinear mapping relationship between the RGB value of each point on the photo-elastic picture and the fringe order of the corresponding point.
Journal ArticleDOI
OS01-1-1 A New Stress Measurement Method by Integrating Photoelasticity and Spectrometry
TL;DR: In this article, the extinction of component colors of an isochromatic fringe pattern follows the sequence of the increasing wavelength and repeats periodically, by integrating this periodic extinction phenomenon in photoelasticity with spectrometry, a new stress measurement method was proposed.
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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