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題名 | 潛變裂縫生長率預估統制方程式通式 |
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作者 | 劉慶雄; 吳水茂; 傅明南; 王定三; | 書刊名 | 中正嶺學報 |
卷期 | 22:1 1993.07[民82.07] |
頁次 | 頁15-22 |
分類號 | 440.2 |
關鍵詞 | 潛變裂縫生長率; 裂縫端應力域; 預估; 潛變裂縫生長率; 統制方程式; 衝拉試件; 葛氏裂縫; Volterra積分方程式; Creep crack growth; Governing equation; Crack-tip stress fields; Compact ten-sion specimen; Griffith's crack; Creep crack growth rate; Volterra integral equa-tion; |
語文 | 中文(Chinese) |
中文摘要 | 藉一維潛變裂縫生長模式,本文旨在推導潛變裂縫生長統制方程式之 通式;該模式係婁基於晶界空孔生長。導出之通式經兩例印證-萬氏裂縫(Griffith's Crack)及衝拉試件(Compact Tension Specimen),證實該統制方程式可適用於各種試 件,只要試件應力強度因數(Stress Intensity Factor)可表為裂縫長及試件幾何尺寸之 函數式。本文導出之通式可以Volterra積分方程式求數值解。 |
英文摘要 | By using a one-dimensional creep crack growth model and based on the creep growth ofgrain-boundary cavities, the general governing equations for creep crack growth have been derived and verified by two cases-the Griffith's crack and the compact tension specimen. It isshown that the general govering equations are valid for every kind of specimen as long as itsstress intensity factor is a function of crack length and specimen geometry dimensions. Thegoverning equations derived in this paper can be numerically solved as non-linear Volterra integral equation. |
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