查詢結果分析
來源資料
頁籤選單縮合
題名 | The Near Tip Field Expansion of a Propagating Anti-Plane Crack with Nonuniform Velocity=非等速反平面裂紋擴展的近場展開解析 |
---|---|
作者 | 應宜雄; 馬劍清; Ing, Yi-shyong; Ma, Chien-ching; |
期刊 | 中國工程學刊 |
出版日期 | 19990500 |
卷期 | 22:3 1999.05[民88.05] |
頁次 | 頁293-300 |
分類號 | 440.12 |
語文 | eng |
關鍵詞 | 裂紋尖端近場; 擴展裂紋; 暫態解析; Near tip field; Propagating crack; Transient analysis; |
中文摘要 | 本文旨在以理論解析來探討反平面裂紋動力擴展的裂紋尖端之高階漸進展開,對 於等速擴展裂紋之應力場獲得了六項以及非等速擴展裂紋獲得了三項的高階展開漸進解析, 而為了驗證本文所得的高階展開解的正確性,文中亦完整解析了一個以等速擴展裂紋的問題 並獲得其各展開項以作比較,本文亦發現對於展開項中的奇異主項在暫態裂紋擴展的初期並 不能完全主導裂紋尖端場。 |
英文摘要 | In this study, a higher order asymptotic expansion of anti-plane crack tip fields is investigated for dynamic transient crack growth. A six term and a three term expansion for the shear stresses around the crack tip are obtained for cracks propagating at constant and non-uniform velocity, respectively. In order to compare with the near tip field solution derived in this study, an exact transient solution of propagating cracks with constant velocity is examined. The result shows that the use of the singular field to represent the actual stress field should be carefully considered, especially in the early stages of the dynamic transient field. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。