| 研究生: |
曾崴聖 Tseng, Wei-Sheng |
|---|---|
| 論文名稱: |
鋼筋混凝土版受衝擊荷載之破壞分析 Failure Analysis of Reinforced Concrete Plates Subjected to Impact Loading |
| 指導教授: |
胡宣德
Hu, Hsuan-Teh |
| 共同指導教授: |
戴毓修
Tai, Yuh-Shiou |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2011 |
| 畢業學年度: | 99 |
| 語文別: | 中文 |
| 論文頁數: | 75 |
| 中文關鍵詞: | LS-DYNA 、有限元素 、衝擊荷載 、鋼筋混凝土板 |
| 外文關鍵詞: | Finite element, LS-DYNA, impact loads, Reinforced Concrete Plates |
| 相關次數: | 點閱:88 下載:2 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本文主要利用LS-DYNA有限元素分析軟體,針對投射體在一定速下對純混凝土靶體的侵徹分析進行模擬,並與文獻中試驗結果進行比較,以驗證本文分析的可靠性及混凝土參數設定的正確性。其次針對衝擊荷載作用下鋼筋混凝土板之破壞模式與動態反應進行分析,探討鋼筋混凝土板的破壞影響因素如,鋼筋比、彈體速度、侵徹角度來進行模擬,找出這些因素影響之規律。研究結果顯示,當鋼筋混凝土板之配筋率增加、彈體速度下降或侵徹角度增加,都能減少結構體的破損情況。最後整理歸納,用以提供未來相關工程應用及學術研究上之參考。
In this study will use the the nonlinear finite element software LS-DYNA. Build a similar model that the reference of the experiment, to simulate the projectiles penetration the pure concrete targets, and compared its results to verify the reliability of software and the correct of concrete’s parameter.
And then study the failure analysis of reinforced concrete plates subjected to impact loading, to research the damaging effects of factors such as, steel ratio, speed of projectile and angle of penetration, to identify the law of affection factors.
The results show that reinforcement ratio increased, decreased projectile velocity, penetration angle increases, can improve the situation of the structure destruction.
Finally collate those data to provide a valuable reference for engineering designers and researchers to precede the structural dynamic analysis.
[1]W. F. Chen, and A. F. Saleeb, Constitutive Equations for Engineering Materials: Elsevier B.V., 1994.
[2]J.-Y. Wu, “Failure Analysis of the Reinforced Concrete Plate Subjected to Air Blast Loading,” Master's Thesis, Civil Engineering, NCKU, 2010.
[3]A. Task, Committee on Concrete and Masonry Structure State of the Art Report on Finite Element Analysis of Reinforced Concrete, New York, 1982.
[4]R. P., and C. M., “Composite of Reactive Powder Concrete,” Cement and Concrete Research, vol. 25, no. 7, 1995.
[5]B. G.G., Shearing Strength of Concrete under High Triaxial Stress Computation of Mohr’s Envelope as a Curve, 1949.
[6]朱伯發、董振祥, 鋼筋混凝土非線性分析: 同濟大學出版社, 1984.
[7]L. P. Saenz, Discussion of Equation for the stress-strain curve of concrete by P. Desayi, and S. Krishnan, vol. 61, 1964.
[8]過鎮海, “混凝土應力應變全曲線試驗研究,” 建築學報, vol. 12, 1981.
[9]Building Code Requirements for Reinforced Concrete, American Concrete Institute, Detroit, Michigan, 2005.
[10]錢偉長, 穿甲力學: 國防工業出版社, 1996.
[11]H.-f. Liu, “Dynamic Analyses of Fiber-Reinforced Reactive Powder Concrete Plates,” Master's Thesis, Civil Engineering, NCKU, 2006.
[12]W. Goldsmith, “Non-ideal projectile impact on targets,” International Journal of Impact Engineering, vol. 22, no. 2-3, pp. 95-395, 1999.
[13]馬曉青、韓峰, 高速碰撞動力學, 北京: 國防工業出版社, 1998.
[14]R. L. MecNeil, “An Approach for Estimating Soil Attachment during Penetration Events,” SAND, vol. 80, pp. 2667, 1980.
[15]R. P. Kennedy, “A review of procedures for the analysis and design of concrete structures to resist missile impact effects,” Nuclear Engineering and Design, vol. 37, no. 2, pp. 183-203, 1976.
[16]R. S. Bemard, Depth and motion prediction for each penetrators, U.S. Army Waterways Experiment Station. , Vicksburg, 1978.
[17]A. K. Kar, “Projectile penetration into buried structures,” Journal of Structure Division, vol. 11, pp. 125-139, 1978.
[18]M. E. Backman, and W. Goldsmith, “The Mechanics of Penetration of Projectiles into Targets,” International Journal of Engineering Science, vol. 16, pp. 1-99, 1978.
[19]白金澤, LS-DYNA3D理論基礎與實例分析, 北京: 科學出版社, 2005.
[20]J. K. Gran, and D. J. Frew, “In-target radial stress measurements from penetration experiments into concrete by ogive-nose steel projectiles,” International Journal of Impact Engineering, vol. 19, no. 8, pp. 715-726, 1997.
[21]T. J. Holmquist, G. R. Johnson, and W. H. Cook, A computational constitutive model for concrete subjected to large strains, high strain rates, and high pressures,, Qucbec City,Canada, 1993.
[22]G. R. Johnson, Computed radial stresses in a concrete target penetrated by a steel projectile,, 1998.
[23]G. R. Johnson, and W. H. Cook, “Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures,,” Journal of Engineering Fracture Mechanics, vol. 21, no. 1, pp. 31-48, 1985.
[24]C. Y. Tham, “Numerical and empirical approach in predicting the penetration of a concrete target by an ogive-nosed projectile,” Finite Elements in Analysis and Design, vol. 42, no. 14-15, pp. 1258-1268, 2006.
[25]C. W. Young, Penetration equations, SAND97-2426, Sandia National Laboratories, Albuquerque, NM, 1997.
[26]M. J. Forrestal, B. S. Altman, J. D. Cargile et al., “An empirical equation for penetration depth of ogive-nose projectiles into concrete targets,” International Journal of Impact Engineering, vol. 15, no. 4, pp. 395-405, 1994.
[27]C. G.R., and P.S., Symonds Strain Hardening and Strain Rate Effects in the Impact Loading of Cantilever Beams, 1985.
[28]LS-DYNA Version 971 User’s Manual, 2007.