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    Please use this identifier to cite or link to this item: http://chur.chu.edu.tw/handle/987654321/26184


    Title: 數位反射式光彈法於長銲鋼軌殘留應力之量測
    Authors: 張奇偉
    Chang, Che-Way
    Contributors: 土木工程學系
    Civil Engineering
    Keywords: 反射式光彈法;數位影像差異化處理;殘留應力量測
    Reflection Photoelasticity;Digital discrete image processing;Residual Stress
    Date: 2012
    Issue Date: 2014-06-26 20:22:34 (UTC+8)
    Abstract: 本研究運用影像差異化之影像處理技術，決定光彈應力場上之光彈應力條紋級次，減少以往影像過於相近而誤判及數值離散而造成人為判定的誤差，可快速且準確進行光彈應力條紋的分析，並以數位反射式光彈法之影像處理技術，實際應用於長銲鋼軌之釋放殘留應力量測。本方法以鑽孔方式量測長銲鋼軌內之釋放應力，經由光彈貼片影像擷取/平滑化/差異化(條紋級次分離)/二值化/骨骸化處理後，將可預測光彈貼片上長銲鋼軌內之釋放應力分佈，並結合長銲鋼軌理論與數值模擬方式進行驗證與探討，本研究方法可提供實際長銲鋼軌殘餘應力之量測與分析。
    A digital image discrete processing photoelastic coatings system is developed to determine the magnitude of the residual stress in a prestressed long welded rail subjected to an uniform uniaxial compression load and expansion stress analysis. Performing d
    Appears in Collections:[Department of Civil Engineering] Seminar Papers

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