Journal ArticleDOI
Scanning schemes in white light photoelasticity - Part II: Novel fringe resolution guided scanning scheme
Vivek Ramakrishnan,K. Ramesh +1 more
TLDR
In this paper, a method is proposed for creating a whole field map which represents the spatial resolution of the isochromatic fringe pattern, which can be used to extract fringe data from thin slices cut from a stereo-lithographic model that has characteristic random noise due to layered manufacturing.About:
This article is published in Optics and Lasers in Engineering.The article was published on 2017-05-01. It has received 25 citations till now. The article focuses on the topics: Photoelasticity & Image resolution.read more
Citations
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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
An improved normalization technique for white light photoelasticity
K. Ramesh,Ashutosh Pandey +1 more
TL;DR: A novel normalization methodology is developed to improve the dynamic range in both low and high fringe density areas and it is demonstrated that while applying normalization for stretching the dynamicrange, one has to use only an experimentally recorded calibration table that is normalized.
Journal ArticleDOI
Analysis of contact zones from whole field isochromatics using reflection photoelasticity
M P Hariprasad,K. Ramesh +1 more
TL;DR: In this article, a semi-automatic contact point refinement algorithm is proposed to evaluate the unknown contact parameters by post processing the whole field fringe order data obtained from reflection photoelasticity in a nonlinear least squares sense.
Journal ArticleDOI
Photoelastic method to quantitatively visualise the evolution of whole-field stress in 3D printed models subject to continuous loading processes
TL;DR: In this paper, the authors use a series of continuous frames extracted from a video recording of the fringe changes over the entire loading process to quantify the continuous evolution of the whole-field stress in photosensitive material that is applicable to fabrication of complex structures using 3D printing technology.
Journal ArticleDOI
Quantification of photoelastic fringe orders using polarized light camera and continuous loading
TL;DR: In this article, a polarized light camera was employed to simultaneously capture the photoelastic patterns of the dark and bright fields under circular polariscope, and based on the light intensity difference of these patterns in the entire loading process, a method of quantifying fringe orders was proposed.
References
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Journal ArticleDOI
Advancing front scanning approach for three-fringe photoelasticity
Sohan Kale,Sohan Kale,K. Ramesh +2 more
TL;DR: It is shown in this paper that simple image scanning schemes used to implement such resolving methods result in some unresolved zones for complex shaped specimens that are frequently encountered in industrial applications.
Journal ArticleDOI
Review of photoelastic image analysis applied to structural birefringent materials: glass and polymers
Michele Scafidi,Giuseppe Pitarresi,Andrea Toscano,Giovanni Petrucci,Sabina Alessi,Augusto Ajovalasit +5 more
TL;DR: In this article, photoelasticity is applied to the analysis of stress field in two classes of structural materials, namely tempered glasses and thermoset polymers, to investigate the development of swelling stresses and changes in fracture toughness as induced by water uptake aging.
Journal ArticleDOI
Digital photoelastic analysis applied to implant dentistry
TL;DR: The fringe field in the vicinity of the connected implants (All-On-Four® concept) is analyzed using recent advances in digital photoelasticity and whole field isoclinic data is obtained for the first time in implant dentistry, which could throw important information in improving the structural stability of the implant systems.
Journal ArticleDOI
A modified regularized scheme for isochromatic demodulation in RGB photoelasticity
TL;DR: Noise produced in the fringe maps due to the presence of color abberations at the starting pixels of the rows is highlighted, wherein a modified regularized algorithm and an improved LUT calibration have been employed in tandem.
Journal ArticleDOI
New initiatives in single-colour image-based fringe order estimation in digital photoelasticity:
TL;DR: The use of single-colour image for determining the fringe orders in digital photoelasticity has gained importance in recent years, and in this, the fringe order are obtained by comparing the colou
Related Papers (5)
Scanning schemes in white light Photoelasticity – Part I: Critical assessment of existing schemes
Vivek Ramakrishnan,K. Ramesh +1 more
Analysis of contact zones from whole field isochromatics using reflection photoelasticity
M P Hariprasad,K. Ramesh +1 more