Present Situation of Digital Photoelasticity

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  • デジタル光弾性法の現状
  • デジタル コウダンセイホウ ノ ゲンジョウ

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Abstract

Digital photoelasticity is a full-field method for obtaining photoelastic parameters, isochromatic fringes and isoclinic angles, and for analyzing stresses in a model using digital image processing combined with computers. There have been several different attempts made to automate the acquisition of photoelastic parameters in the last two decades. Most of these use the approach of phase shifting, enabling the photoelastic parameters to be calculated automatically and exactly. In this paper, a survey of recent methods of phase stepping methods developed in the last 10 years is provided.

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