Chinese Optics Letters, 2015, 13 (10): 101202, Published Online: Sep. 13, 2018
Cubic polynomial curve-guided method for isochromatic determination in three-fringe photoelasticity Download: 713次
Abstract
A method for isochromatic determination in three-fringe photoelasticity is presented. It combines the phase-shifting method with cubic polynomial curve-fitting technology to eliminate the errors caused by color repetition. We perform a demonstration of the method on a circular disc subjected to compressive loading and an injection-molded cover with residual stresses. The test results compare well with the theoretical results.
Xiaomeng Liu, Shuguang Dai. Cubic polynomial curve-guided method for isochromatic determination in three-fringe photoelasticity[J]. Chinese Optics Letters, 2015, 13(10): 101202.