Chung-Hua University Repository:Item 987654321/34596
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    Please use this identifier to cite or link to this item: http://chur.chu.edu.tw/handle/987654321/34596


    Title: 應用格點法量測應力強度因子之實驗研究
    Authors: 羅鵬飛
    Luo, Perng-Fei
    Contributors: 機械工程學系
    Mechanical Engineering
    Keywords: 圓形格點;插補橢圓;仿射轉換;應力強度因 子;2D 視覺系統
    Date: 2007
    Issue Date: 2014-06-27 02:56:38 (UTC+8)
    Abstract: 本文以格點法量測I 型破裂試件的應力強度因子
    KI,所採用的破裂試件為鋁合金6061-T6 材料製成的
    CT (compact tension)試件。本文於試件表面沿著起始自
    裂紋尖端的徑向線上,黏貼一組六角形格點陣列,同時
    也使一組格點陣列附著於此試件表面之適當位置。本文
    以2D 電腦視覺系統,擷取CT 試件變形前後之影像,
    以便利用單格點應變法或插補橢圓法,求取各黏貼格點
    中心或插補點之主應變的大小及方向。在執行破裂實驗
    時,CT 試件將產生剛體運動,此時附著格點陣列會隨
    試件作剛體運動,但格點本身並
    Appears in Collections:[Department of Mechanical Engineering] Seminar papers

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