Strain Distribution in Circular Disk of PMMA by Using Reflection Polariscope

The experiment was conducted to study strain distribution in circular disk of PMMA by photoelasticity in reflection polariscope. The strain in circular disk was induced by two point load created by hydraulic system (535.37-994.63 N) with the step increase of 153.21 N. We added the Babinet compensate...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-12, Vol.1144 (1), p.12142
Main Authors: Manjit, Y, Limpichaipanit, A, Ngamjarurojana, A
Format: Article
Language:English
Subjects:
Hydraulic equipment
Photoelasticity
Polariscopes
Polymethyl methacrylate
Quadrants
Strain distribution
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Summary:The experiment was conducted to study strain distribution in circular disk of PMMA by photoelasticity in reflection polariscope. The strain in circular disk was induced by two point load created by hydraulic system (535.37-994.63 N) with the step increase of 153.21 N. We added the Babinet compensater in basic reflection polariscope to observe the fractional isochromatic fringe order in the first quadrant of disk and we calculated strain by using stressstrain optic laws. The result showed the relation between absolute of different strain in first quadrant of circular disk and the relation of force with absolute of different strain. It was found that maximum different strain produced at contact area of disk decreased along horizontal and vertical direction. The relation of force with different strain was linear.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1144/1/012142