Journal ArticleDOI
Digital photoelasticity – A comprehensive review
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TLDR
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.Abstract:
Digital photoelasticity has rapidly progressed in the last few years and has matured into an industry-friendly technique. This review thematically classifies all the developments in digital photoelasticity and highlights the relative merits and drawbacks of the various techniques. The overall objective is to provide enough information and guidance to allow an end-user to make an informed choice on the type of technique to be used in a particular situation.read more
Citations
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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.
Journal ArticleDOI
Visualization of the three-dimensional structure and stress field of aggregated concrete materials through 3D printing and frozen-stress techniques
TL;DR: In this article, the authors used 3D printed models based on X-ray microfocus computed tomography (CT) imaging of a concrete sample to replicate its complex aggregate structure in a transparent matrix, and the associated three-dimensional stress field is visually characterized at mesoscale through uniaxial compression tests and photoelastic techniques that incorporate a threedimensional frozen-stress test to analyse the effects of randomly distributed aggregates.
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
Optical measurement techniques – A push for digitization
TL;DR: This work presents a new digital photoelasticity Reference EPFL-ARTICLE-222716 that combines holographic interferometry and digital image correlation for Fringe projection profilometry with real-time information about the response of the human eye to light.
References
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Journal ArticleDOI
Isochromatics demodulation from a single image using the regularized phase tracking technique
TL;DR: The method used is a regularized phase tracking algorithm with a new sequential scanning technique specifically adapted for the characteristics of the isochromatic fringe patterns: possible apparition of closed fringes, large dynamic range in its spatial frequency content and low noise.
Journal ArticleDOI
A numerical comparison of real-time phase-shifting algorithms
TL;DR: In this article, the integrated phase shifting technique (IPST) can real-time analyze the photoelastic parameters at a video rate of the high speed CCD camera, and fourteen algorithms are described by different configurations of the rotating an analyzer at a constant rate and an output quarter-wave plate at another constant rate.
Proceedings ArticleDOI
Whole-field stress separation by oblique incidence using phase-shifting technique
K. Ramesh,S. K. Mangal +1 more
TL;DR: In this article, a non-linear least squares approach is adapted to process the data and numerical experimental is carried out on a disc under diametral compression to show its validity.
Journal ArticleDOI
Role of finite elements in evolving the slicing plan for photoelastic analysis of three‐dimensional models
Journal ArticleDOI
Factors affecting the intensity distribution in high stress gradient zones in digital photoelasticity
S. K. Mangal,K. Ramesh +1 more
TL;DR: In this article, it is observed that in high stress gradient zones the fringes become brighter, which leads to erroneous results, if not accounted for, in those techniques which use quantitative values of intensity to evaluate the experimental parameters.