| 研究生: |
陳其雍 Chi-Yon Chen |
|---|---|
| 論文名稱: |
混凝土塑性破壞模型之研究 A Study of the Plastic-Fracture Model for Concrete |
| 指導教授: |
王仲宇
Chung Yue Wang |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 畢業學年度: | 88 |
| 語文別: | 中文 |
| 論文頁數: | 95 |
| 中文關鍵詞: | 塑性 、破壞 、碎裂 、顯性 、有限元素 、混凝土 |
| 外文關鍵詞: | plasticity, failure, fragmentation, explicit, finite element, concrete |
| 相關次數: | 點閱:8 下載:0 |
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在本研究中,發展出一個程式以應用塑性破壞模型於有限元素分析之中,對幾個常見的混凝土破壞準則進行比較,並假設加載函數與破壞準則無關以評估不同的降伏準則與加載函數在混凝土行為之預測上所造成的影響。此外,程式中並結合碎裂演算法以模擬混凝土之開裂行為。
研究結果顯示加載函數之選擇對混凝土力學行為之預測影響很大,加載函數與破壞準則具有相同形式之假設在某些加載狀態下可能導致較差的預測結果,將二者分開考慮可得到較精確之混凝土應力應變關係。
In this study, a code was developed to implement the plastic-fracture model for finite element analysis. Several commonly adopted failure criteria are compared, and the effect of loading fuctions on the behavior of concrete are evaluated by the code. Besides, a fragmentation algorithm is incorporated into the code to simulate the cracking behavior of concrete.
The results indicate that the prediction of the behavior of concrete is greatly affected by the choice of loading functions, and the models based on the assumption that the loading function and failure criterion have the same form may yield poor results under some loading conditions. Considering them separately may obtain the better prediction of stress-strain relationships of concrete.
1.Hsieh, S. S., Ting, E. C. and Chen, W. F. (1982). A plastic-fracture model for concrete. 181-197.
2.Labbane, M., Saha, N. k. and Ting, E. C. (1993). Yield criterion and loading function for concrete plasticity. Int. J. Solids structures, 30, 1269-1288.
3.Chen, W. F. and Han, D. J. (1995). Plasticity for structural engineers. Taipei: Gau Lih Book Co., Ltd..
4.董毓利(1997)。混凝土非線性力學基礎,中國建築工業出版社。
5.沈聚敏、王傳志和江見鯨(1993)。鋼筋混凝土有限元與板殼極限分析,清華大學出版社。
6.Nilaward, T., White, T. and Ting, E. C. (1996). Three dimensional finite element programs for pavement analysis. Joint Highway Research Project, FHWA/IN/JHRP-96/21.
7.Rice, D. L. and Ting, E. C. (1991). Large displacement transient anlaysis of flexible structures. Structure Engineering, CE-STR-91-37.
8.Rice, D. L. and Ting, E. C. (1995). Finite element analysis of ballistic impact and projectile penetration of concrete targets. Structure Engineering, CE-STR-95-6.
9.Rice, D. L. and Ting, E. C. (1992). Fragmentation algorithm for finite element failure simulation and analysis. Structure Engineering, CE-STR-92-21.
10.張瑞宏、葉瑞平和丁承先(1998)。斷裂式有限元素分析法之向量化加速計算,中國土木水利工程學刊,第十卷,第二期。
11.王啟峰(1999)。鋼筋混凝土梁之二維顯性有限元素法分析,國立中央大學土木所碩士論文。
12.Owen, D. R. J. and Hinton, E. (1980). Finite elements in plasticity
13.殷有泉(1987)。固體力學非線性有限元引論,北京大學出版社、清華大學出版社。
14.徐興、郭乙木和沈永興(1993)。非線性有限元及程序設計,浙江大學出版社。
15.朱伯龍和董振祥(1985)。鋼筋混凝土非線性分析,同濟大學出版社。