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來源資料
頁籤選單縮合
題 名 | Analysis of a Running Crack Stopping Suddenly-Solution for Small Time after Stop=延伸裂縫停止時之解析-短暫時間之解 |
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作 者 | 張燕玲; | 書刊名 | 力學 |
卷 期 | 13:2 1997.06[民86.06] |
頁 次 | 頁175-184 |
分類號 | 440.2 |
關鍵詞 | 自相似勢能法; 理論函數法; 動應力強度因子; 裂縫停止; Method of self-similar potentials; Function-theoretic approach; Dynamic stress intensity factor; Crack arrest; |
語 文 | 英文(English) |
英文摘要 | 本文是利用自相似勢能法分析延伸裂縫突然停止時之理論解。考慮一個均質、等 向性之無窮大彈性體,此彈性體在時間 t<0 時,無裂縫存在; 而在時間 t ≧ 0 時,裂縫 形成並以定速度沿著 x 軸之正負方向對稱延伸,但在時間 t=td 時, 假設某種情況下使得 裂縫突然停止。對這種非自相似問題,首先用自相似勢能法及理論函數法求基本解,再將基 本解疊加,使其滿足問題之邊界條件,求得短暫時間問題之解後,則計算動應力強度因子。 of crack arrest is not the self-similar problem. To solve this problem, first the fundamental solution is found by the combination of the self-similar potentials method and the function-theoretic approach. Then, the superposition of the fundamental solutions is applied such that the boundary conditions of the original problem are satisfied. As long as the solution for small time after the running stops is obtained, the asymptotic solution will be obtained to evaluate the dynamic stress intensity factor. s intensity factor. |
本系統中英文摘要資訊取自各篇刊載內容。