Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/17514
標題: 三維圓管裂縫有限元素模型之自動建立與應用研究
The Generation and application of Finite Element Model in cracked of the 3D circular pipes
作者: 黃千豪
Huang, Qian-Hao
關鍵字: stress intensity factor
應力強度因子
mesh generation
fracture mechanic
網格產生
破裂力學
出版社: 應用數學系所
引用: [1] Michael Janssen, Jan Zuidema and Russell Wanhill, “FRACTURE MECHANICS”, Spon Press ,LONDON AND NEW YORK,2004 [2] D.R.J.Owen and A.J.Fawkes, “ Engineering Fracture Mechanics:Numerical methods and Application” ,Pineridge Press Ltd ,Swansea,U.K.,1983 [3] David Broek “ The Practical use of Fracture Mechanics”, Netherland :Kluwer Academic, Dordrecht,1988 [4] G. R. Irwin, “Analysis of Stresses and Strains Near The End of a Crack Travrsing a Plate”, Journal of Applied Mechanics, Trans. of ASME, Vol. E24,, pp.361-364., 1957. [5] Andrea Carpinteri、Roberto Brighenti、Andrea Spagnoli, “ Fatigue growth simulation of part-through flaws in thick-walled pipes under rotary bending” ,International journal of fatigue, 22,pp1-9,(2000). [6] “Release 10.0 Documentation for ANSYS Verification Manual” . [7] Chris Timbrell,Paul Claydon,Gerry Cook, “Application Of ABAQUS To Analysis Of 3D Crack Growth Predicaion”,Abaqus, pp.1-3(1994) [8] White, David R., Lai Mingwu, Steven E. Benzley, and Gregory D. Sajaardema, “Automated Hexahedral Mesh Generation by Virtual decomposition ” ,Proceedings 4th International Meshing Roundtable, pp.165-176(1995) [9] 張益豪, “六面體網格產生方法之研究” , 國立成功大學機械工程學系碩士論文 ,中華民國九十三年。 [10] 謝坤昌,“水式核能電廠再循環系統管路裂紋安全評估互動式電腦軟體覆焊設計之擴充與維護計畫期中報告” 龍華科技大學,pp.10-13 ,中華民國九十四年十月十五日。 [11] 林源富,“運用高階元素解破裂點尖端應力強度因子”, 國立成功大學機械工程學系碩士論文 ,中華民國九十一年。 [12] 陳立生, “裂緣位移外插法用於應力強度因子值之估測”, 國立中山大學機械工程研究所,中華民國八十一年。
摘要: 本論文對含內、外裂橢圓形裂縫之圓管應力強度因子計算,計算在橢圓形裂縫尖端部位附近,使用潰點奇異元素,建立有限元素的網格化自動產生模型,並利用ANSYS程式計算裂縫尖端的應力強度因子。與現有的文獻比較,無因次應力強度因子在裂縫中點和邊緣位置的變化趨勢,均於本文中討論。 此管路裂縫網格產生系統,是以ANSYS有限元素分析程式做為計算核心,結合Visual Basic,所建立的一套分析程序。在使用上,只須要簡單的操作程序,即可快速分析出所需的精確數據,藉此可大量節省分析之時間與人力。
The stress intensity factors of pipes containing an elliptical arc of crack have been evaluated by collapsed singular element with the more detailed mesh on crack front and their respective adjacent areas. By comparing the stress intensity factors for different crack profiles with their appropriate published results, the variations of stress intensity factors on center and edge locations have been investigated. The Mesh Generation system consists of ANSYS, a finite element method analysis program, and is combined with Microsoft Visual Basic to form the system. By using this system one can have the benefit of saving time and manpower.
URI: http://hdl.handle.net/11455/17514
其他識別: U0005-0808200618403400
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-0808200618403400
Appears in Collections:應用數學系所

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