Chinese Optics Letters, Volume. 13, Issue 10, 101202(2015)

Cubic polynomial curve-guided method for isochromatic determination in three-fringe photoelasticity

Xiaomeng Liu* and Shuguang Dai
Author Affiliations
  • School of Optical Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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    Figures & Tables(5)
    Optical arrangements: (a) circular polariscope and (b) plane polariscope.
    Experimentally obtained images of a disc under diametrical compression using the four-step approach: (a)–(d) I0–I3. (e)–(g). Fringe maps of R, G, and B planes calculated using Eq. (5).
    (a) Resolved isochromatic fringe orders using Eq. (6). (b) Fringe order variation along line cd and the fitted curve. (c) Variation of ei of point R using Eq. (6). (d) Separated parts for isochromatic determination. (e) Whole-field refined results. (f) RGB results, refined results, and theoretical results along line cd; (g) RGB results, refined results, and theoretical results along line cd using a circular polariscope arrangement following Ajovalsit et al.
    Procedure of isochromatic determination.
    (a) Injection-molded polycarbonate cover. (b)–(d) Fringe maps of R, G, and B planes in the center part of the cover calculated using Eq. (5). (e) Resolved fringe orders using Eq. (6). (f) Refined fringe orders.
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    Xiaomeng Liu, Shuguang Dai. Cubic polynomial curve-guided method for isochromatic determination in three-fringe photoelasticity[J]. Chinese Optics Letters, 2015, 13(10): 101202

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    Paper Information

    Category: Instrumentation, measurement, and metrology

    Received: Jun. 6, 2015

    Accepted: Aug. 19, 2015

    Published Online: Sep. 13, 2018

    The Author Email: Xiaomeng Liu (lxm798@163.com)

    DOI:10.3788/COL201513.101202

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