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系統識別號 U0026-0812200915100129
論文名稱(中文) 有限元素ANSYS分析圓管在有外壓或無外壓循環彎曲負載下之力學行為
論文名稱(英文) Finite Element ANSYS Analysis on the Mechanical Behavior of Circular Tube under Cyclic Bending with or without External Pressure
校院名稱 成功大學
系所名稱(中) 工程科學系碩博士班
系所名稱(英) Department of Engineering Science
學年度 97
學期 2
出版年 98
研究生(中文) 趙國鈞
研究生(英文) KUO-CHUN CHAO
電子信箱 n9695421@ccmail.ncku.edu.tw
學號 n9695421
學位類別 碩士
語文別 中文
論文頁數 65頁
口試委員 指導教授-潘文峰
口試委員-陳元方
口試委員-徐建民
中文關鍵字 橢圓化-曲度  橢圓化-循環圈數  彎矩-曲度 
英文關鍵字 ovalization-number of cycles  moment-curvature  ovalization-curvature 
學科別分類
中文摘要 本研究主要是以3D繪圖軟體Pro/Engineer及有限元素軟體ANSYS分析AL-6061-T6鋁合金圓管及CS1020碳鋼圓管,在有或無外壓對稱曲度循環彎曲負載下的力學行為。力學行為包含有彎矩-曲度、橢圓化-曲度和橢圓化-循環圈數的關係,且分別探討圓管中央、圓管全長11/24位置及圓管全長18/24位置截面的橢圓化量。並將ANSYS分析的結果和Kyriakides 與Corona【5】所做的實驗結果進行比較。在ANSYS分析和實驗結果顯示,圓管在對稱曲度循環彎曲下有無外壓對彎矩-曲度關係幾乎沒有任何的影響,但有無外壓對橢圓化-曲度的關係卻有很顯著的影響,也就是當圓管在對稱曲度循環彎曲負載時,有外壓的橢圓化量比無外壓的橢圓化量增加的速率較快。此外,圓管全長的18/24位置截面,因較接近施力端的緣故,使得橢圓化增加的速率較其他兩個位置截面快。ANSYS分析和實驗結果比較後發現,理論能合理的描述實驗結果。
英文摘要 The main purpose of thesis is to use the 3D mapping software Pro/Engineer and finite element software ANSYS to analyze the mechanical behavior of AL-6061-T6 aluminum alloy and CS1020 carbon steel tubes subjected to symmetric-curvature cyclic bending with or without external pressure. The mechanical behavior contains the moment-curvature, ovalization-curvature and ovalization-number of cycles relationships. The ovalizations of tube’s cross-section are discussed at the center, 11/24 and 18/24 of the tube span. The analysis result obtained by ANSYS is compared with the experimental result tested by Kyriakides and Corona [5].It is shown from the ANSYS analysis and experimental results that moment- curvature relationship does not affect by the external pressure for circular tubes subjected to symmetric-curvature cyclic bending. However, the ovalization- curvature relationships is strongly influent by the external pressure. That means the ovalization of tube’s cross-section at some external pressure increases faster than that at no external pressure. In addition, the ovalization at the 18/24 of the tube span increases faster that that at center and 11/24 of the tube span. The analysis result obtained by ANSYS is compared with the experimental result. Good agreement between them is achieved.
論文目次 中文摘要 --------------------------------------------- I
英文摘要 --------------------------------------------- II
誌 謝 --------------------------------------------- III
目 錄 --------------------------------------------- IV
表 目 錄 --------------------------------------------- IX
圖 目 錄 --------------------------------------------- X
符號說明 --------------------------------------------- XIII
第一章 緒論---------------------------------------- 1
1-1 研究背景及動機------------------------------- 1
1-2 文獻回顧------------------------------------- 3
1-3 論文內容------------------------------------- 10
第二章 理論基礎------------------------------------ 11
2-1 有限元素分析法------------------------------- 11
2-2 塑性理論基礎--------------------------------- 15
2-3 Pro/Engineer 繪圖軟體簡介-------------------- 20
2-4 ANSYS簡介---------------------------------- 22
2-4-1 簡介----------------------------------------- 22
2-4-2 前處理(Preprocessor)模組--------------------- 22
2-4-3 分析計算(solution)模組----------------------- 24
2-4-3 後處理器(Postprocessor)模組------------------ 25
第三章 ANSYS分析------------------------------ 27
3-1 元素的選擇----------------------------------- 27
3-2 圓管材料特性及相關參數----------------------- 29
3-3 有限元素模型之建立--------------------------- 32
3-3-1 建立實體模型--------------------------------- 32
3-3-2 網格分割------------------------------------- 34
3-4 邊界條件與負載方式--------------------------- 35
3-4-1 邊界條件------------------------------------- 35
3-4-2 負載方式------------------------------------- 36
3-5 求解過程------------------------------------- 37
第四章 ANSYS分析結果與討論-------------------- 40
4-1 AL-6061-T6鋁合金圓管ANSYS分析與實驗結果----- 40
4-1-1 鋁管在對稱曲度循環彎曲下無外加壓力的力學行為- 40
4-1-1-1 實驗結果------------------------------------- 40
4-1-1-2 ANSYS分析結果------------------------------ 41
4-1-1-3 ANSYS分析與實驗結果之比較------------------ 42
4-1-2 鋁管在對稱曲度循環彎曲下有外加壓力的力學行為- 45
4-1-2-1 實驗結果------------------------------------- 45
4-1-2-2 ANSYS分析結果------------------------------ 45
4-1-2-3 ANSYS分析與實驗結果之比較------------------ 46
4-2 CS1020碳鋼圓管ANSYS分析與實驗結果--------- 51
4-2-1 碳鋼管在對稱曲度循環彎曲下無外壓時的力學行為- 51
4-2-1-1 實驗結果------------------------------------- 51
4-2-1-2 ANSYS分析結果------------------------------ 51
4-2-1-3 ANSYS分析與實驗結果之比較------------------ 52
4-2-2 碳鋼管在對稱曲度循環彎曲下有外壓時的力學行為- 55
4-2-2-1 實驗結果------------------------------------- 55
4-2-2-2 ANSYS分析結果------------------------------ 55
4-2-2-3 ANSYS分析與實驗結果之比較------------------ 56
4-2-3 碳鋼管作對稱曲度循環彎曲在不同壓力時的橢圓化與圈數關係----------------------------------- 59
4-2-3-1 實驗結果------------------------------------- 59
4-2-3-2 ANSYS分析結果------------------------------ 59
4-2-3-3 ANSYS分析與實驗結果之比較------------------ 59
第五章 結論----------------------------------- 62
參考文獻 --------------------------------------------- 64
自述 --------------------------------------------- 68
參考文獻 參 考 文 獻
1. S. Kyriakides and P. K. Shaw, “Response and Stability of Elastoplastic Circular Pipe under Combined Bending and External Pressure,"Int. J. Solids Struct., Vol.18, No.11, pp.957-973, 1982
2. P. K. Shaw and S. Kyriakides, “Inelastic Analysis of Thin-Walled Tubes under Cyclic Bending,"Int. J. Solids Struct., Vol.21, No.11, pp.1073-1100, 1985
3. S. Kyriakides and P. K. Shaw, “Inelastic Buckling of Tubes under Cyclic Bending,"ASME,J. of Pressure Vessel Tech., Vol.109, pp.169-178, 1987
4. E. Cornoa and S. Kyriakides, “On the Collapse of Inelastic Tubes under Combined Bending and Pressure,"Int. J. Solids Struct., Vol.24,No.5, pp.505-535, 1988
5. E. E. Cornoa and S. Kyriakides, “An Expermental Investigation of the Degradation and Buckling of Circular Tubes under Cyclic Bending and external Pressure,"Thin-Walled Structures, Vol.12, pp.229-263, 1991
6. S. Kyriakides and G. T. Ju, “Bifurcation And Localization Instabilities In Cylindrical Shells Under Bending-I. Experiment,"Int. J. Solids Struct, Vol.29, No.9, pp.1117-1142, 1992
7. E. Cornoa and S. P. Vaze, “Buckling of Elastic-Plastic Square Tubes under Bending, "Int. J. Mech. Sci., Vol.38, No.7, pp.753-775, 1996
8. W. F. Pan and Y. S. Her, “Viscoplastic Collapse of Thin- Walled Tubes under Cyclic Bending,"ASME, J. of Engineering Materials and Tech., Vol.120, pp.287-290, 1998
9. W. F. Pan, T. R. Wang and C. M. Hsu, “ A Curvature-Ovalization Measurement Apparatus for Circular Tubes under Cyclic Bending,"Experimental Mechanics, Int.J., Vol.38, No.2, pp. 99-102, 1998
10. W. F. Pan and C. H. Fan, “An Experimental Stady on the Effect of Curvature-Rate at Preloading Stage on Subsequent Creep or Relaxation of Thin-Walled Tubes under Pure Bending,"JSME Int. J., Series A, Vol.41, No.4, pp.525-531,1998
11. K.L. Lee, W.F. Pan and J.N. Kuo, “The Influence of the Diameter-to-Thickness Ratio of the Stability of Circular Tubes under Cyclic Bending,” International Journal of Solids and Structures, Vol. 38, pp. 2401-2413, 2001
12. M. Elchalakani, X.L. Zhao and R.H. Grzebieta, “ Concrete-filled circular steel tubes subjected to pure bending, ” Journal of Constructional Steel Research, Vol. 57, pp. 1141-1168 , 2001
13. K.L. Lee and W.F. Pan, “ Pure Bending Creep of SUS 304 Stainless Steel Tuber, ” Steel and Composite Structures - an International Journal, Vol. 2, No.6, pp. 461-474, 2002
14. K.L. Lee, R.F. Shie and K.H. Chang, “ Experimental and Theoretical Investigation of the Response and Collapse of 316L Stainless Steel Tubes Subjected to Cyclic Bending, ” JSME International Journal, Series A , Vol. 48, No.3, pp. 155-162 , 2005
15. K.H. Chang, W.F. Pan and K.L. Lee, “Mean Moment Effect on Circular Thin-walled Tubes under Cyclic Bending,” International Journal of Structural Engineering and Mechanics, Vol. 28, No.5, PP. 495-514, 2008
16. 陳建和, “TF-BGA錫球接點熱應力和損壞機制之研究,” 國立成功大學工程科學研究所碩士論文, 2002
17. 溫從凱, “利用G/L方法探討WLCSP構裝含UBM錫球之疲勞壽命,” 國立成功大學工程科學研究所碩士論文, 2004
18. R. Mahdavinejad, “Finite element analysis of machine and workpiece instability in turning,” International Journal of Machine Tools and Manufacture, Vol. 45, pp.753-760, 2005
19. Z. F. Wen, X. S. Jin and W. H. Zhang, “Contact-impact stress analysis of rail joint region using the dynamic finite element method,” Wear, Vol. 258, pp.1301-1309, 2005
20. M. X. Zhou, Q. A. Huang and Ming Qin, “Modeling, design and fabrication of a triple-layered capacitive pressure sensor,” Sensors and Actuators A:Physical, Vol.117, pp.71-81, 2005
21. M. M. Teymoori, E. Abbaspour-Sani, “Design and simulation of a novel electrostatic peristaltic micromachined pump for drug delivery application,” Sensors and Actuators A:Physical, Vol.117, pp.222-229, 2005
22. M. Deiab and S. C. Veldhuis, “Off line simulation system of machining process,” Journal of the Franklin Institute, Vol.344, pp.565-576, 2006
23. H. Y. Lu and K. P. Chang, “Nonlinear vibration of composite circular plate with a rigid central mass-using direct integration method,” Minghsin Journal, Vol. 33, pp. 227-238, 2007
24. Z. F. Sui and H. F. Chen, “The application of ansys in stress analysis of heavywalled pipelines fixed at both ends,” Guizhou Chemical Industry, Vol.33, pp.34-37, 2008
25. 夸克工作室,”Pro Engineer 2001設計實務,”文魁資訊股份有限公司,2003
26. 康淵,”ANSYS 入門,”全華科技圖書股份有限公司,2004
27. 李輝煌, ”ANSYS工程分析-基礎與觀念,”高立圖書有限公司, 2005
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