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題 名 | The Effect of Elliptic Hole on the Screw Dislocation-induced Stress Intensity Factor at Macrocrack Tip=橢圓洞對於螺旋差排在長裂縫尖端引起之應力強度因子的效應 |
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作 者 | 薛顯宗; | 書刊名 | 逢甲學報 |
卷 期 | 26 1993.11[民82.11] |
頁 次 | 頁319-335 |
分類號 | 440.2 |
關鍵詞 | 尖端; 長裂縫; 強度; 橢圓洞; 應力; 螺旋差排; |
語 文 | 英文(English) |
中文摘要 | 利用保角映射法,本文探討了橢圓洞對於螺 旋差排在長裂縫尖端引起之應力強度因子的效應 。首先我們找出了保角映射函數,然後得到了應 力場以及在裂縫尖端的應力強度因子。在裂縫尖 端的應力強度因子,取決於晶格螺旋差排的位置 ,並受橢圓洞之幾何形狀及其內部之螺旋差排的 強烈影響。最後本文也考慮了一些特例的情形。 |
英文摘要 | Using the conformal mapping technique, the effect of elliptic hole on the screw dislocation-induced stress intensity factor at the macrocrack tip is investigated. The conformal mapping function is evaluated first, then the stress field and the stress intensity factor at the crack tip are obtained. The stress intensity factor at the crack tip is dependent on the positions of the lattice screw dislocation, and is strongly influenced by the geometry of elliptic hole and the dislocations in the clliptic hole. Finally, several special cases are considered. |
本系統中英文摘要資訊取自各篇刊載內容。