コンピュータ支援光弾性散乱光法によるモードIおよびIII応力拡大係数の計測

概要

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The scattered light method has not been utilized very often in practical cases because of the need tremendous elaboration for data analysis and experimental difficulties. To facilitate this method, a compact set of polarized light sources with a thin, parallel band was fabricated using a high-intensity algon laser beam and a few cylindrical lenses and analyzed the integrated fringe pattern as the digital image data was analyzed. In this paper, we developed a convenient algorithm for computer-aided stress analysis of the integrated fringe. The authors propose a convenient technique to analyze the variation of the stress intensity factor K_1 of the CT type specimen from plane strain to plane stress state over the thickness of the specimen, using the system with the improved devices of scattered light photoelasticity. Regarding to K_<III>, we were also successful in obtaining accurate measurement by the same manner.
一般社団法人日本機械学会の論文
1993-03-25