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    Title: 雙模數高階積層板元素之自由振動與挫屈分析
    Other Titles: Free Vibration and Buckling Analysis of Higher-Order Bimodulus Plate Element
    Authors: 曾一平
    Contributors: 淡江大學土木工程學系
    Keywords: 高階板元素;雙模數積層板;自由振動分析;挫屈分析;Higher-order plate element;Bimodulus laminated plate;Free vibratienanalysis;Buckling analysis
    Date: 1994
    Issue Date: 2009-03-16 14:43:53 (UTC+8)
    Abstract: 本計畫擬建立高階板理論之有限元素法,以 探討雙模數積層板之自由振動與挫屈分析.複 合材料已廣泛應用於汽車,機械及航太領域,某 些複合材料受到張力的彈性模數與受到壓力的 彈性模數不同,亦即其材料性質與載重情況有 關.其應力□應變關係事實為曲線變化,但常以 二條不同斜率之直線簡化之,稱為雙模數材料.( Aramid rubber與Polyster rubber是實際已應用於輪胎 的二種雙模數複合材料.)雙模數材料積層板具不同彈性係數,故板的中性面將偏離中性面,故 需以疊代法求得中性軸位置,繼而方可求得雙 模數材料性質.本文將以高階板之有限元素法 來探討雙模數積層板之自由振動分析與臨界挫 屈載重分析,以進一步了解其力學行為.因為高 階板理論不需剪力修正係數(或函數)即可正確 地預測模向剪應力Txz,Tyz效應,而且可進一步考 慮斷面撓曲(Warping),故預期本計畫可較以往研 究者得到更精確的雙模數積層板之自由振動與 挫屈分析.
    Appears in Collections:[土木工程學系暨研究所] 研究報告

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