Journal ArticleDOI
Digital photoelasticity: Principles, practice and potential
TLDR
An overview of the principal techniques of digital fringe processing is provided within a single theoretical framework in this paper, where experiments involving more I x 10 6 quantitative fringe order measurements are possible and practical on a routine basis using the current technology.Abstract:
The enormously enhanced power of photoelasticity resulting from adoption of digital technologies is highlighted and discussed. An overview of the principal techniques of digital fringe processing is provided within a single theoretical framework. The practical application of the new technologies using both conventional instruments and novel optical devices is discussed. Experiments involving more I x 10 6 quantitative fringe order measurements are possible and practical on a routine basis using the current technology. Products based on this research are beginning to appear on the market so that many new application areas are opening up for photoelasticity, such as dynamic events, real-time fatigue crack analysis, monitoring polarisation changes at a microscopic level in materials; detailed validation of numerical simulations, particularly of complex geometry and loading; and in-service monitoring using reflection photoelasticity of damage in both homogeneous and heterogeneous materials, such as composites.read more
Citations
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Journal ArticleDOI
Experimental investigation of spur gear tooth mesh stiffness in the presence of crack using photoelasticity technique
Yogesh Pandya,Anand Parey +1 more
TL;DR: In this paper, an experimental methodology based on conventional photo-elasticity technique for computing stress intensity factor (SIF) for cracked spur gear tooth is presented for different single tooth contact position and crack length.
Journal ArticleDOI
Digital photoelasticity – A comprehensive review
TL;DR: This review thematically classifies all the developments in digital photoelasticity and highlights the relative merits and drawbacks of the various techniques to allow an end-user to make an informed choice on the type of technique to be used in a particular situation.
Journal ArticleDOI
Calibration and evaluation of optical systems for full-field strain measurement
Eann A. Patterson,Erwin Hack,Philippe Brailly,Richard L. Burguete,Qasim Saleem,Thorsten Siebert,Rachel A. Tomlinson,Maurice Whelan +7 more
TL;DR: A classification system for the steps in the measurement process is proposed and allows the development of a unified approach to diagnostic testing of components or sub-systems in an optical system for strain measurement based on any optical technique.
Journal ArticleDOI
Review of RGB photoelasticity
TL;DR: The article presents an overview of the main characteristics of RGB photoelasticity that is influence of the quarter-wave plate error, number of acquisitions, type of light source, determination of low and high fringe orders, methods for searching the retardation, scanning procedures, calibration on a material different from that under test, combined use of the RGB and phase shifting methods.
Journal ArticleDOI
Digital photoelasticity: Recent developments and diverse applications
K. Ramesh,Sachin Sasikumar +1 more
TL;DR: In the last three decades of developments, the technique of Digital Photoelasticity (DP) has been stabilized and the methodology has successfully applied to a wide range of problems in Engineering and science as discussed by the authors.
References
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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.
Book
Digital Photoelasticity: Advanced Techniques and Applications
K. Ramesh,G Lewis +1 more
TL;DR: In this article, phase shifting, Polarization Stepping and Fourier Transform Methods are used for phase unwrapping and Optically Enhanced Tiling in digital photoelasticity.
Book
Matrix Theory of Photoelasticity
TL;DR: In this article, the Poincare Sphere and the Jones Calculus are used to describe the photoelastic properties of polarized light, including three-dimensional, two-dimensional and scattered-light photoelsasticity.
Journal ArticleDOI
Towards RGB photoelasticity: Full-field automated photoelasticity in white light
TL;DR: 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.
Related Papers (5)
Towards RGB photoelasticity: Full-field automated photoelasticity in white light
Towards full field automated photoelastic analysis of complex components
Eann A. Patterson,Z F Wang +1 more
Three fringe photoelasticity ‐ use of colour image processing hardware to automate ordering of isochromatics
K. Ramesh,Sanjeev S. Deshmukh +1 more