| 岩石混凝土类材料损伤局部化分叉研究及应用 |
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| 引用本文： | 赵吉东,周维垣,黄岩松,杨若琼.岩石混凝土类材料损伤局部化分叉研究及应用[J].岩土工程学报,2003,25(1):80-83. |
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| 作者姓名： | 赵吉东 周维垣 黄岩松 杨若琼 |
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| 作者单位： | 清华大学水利系；清华大学水利系 北京100084；北京100084； |
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| 基金项目： | 国家自然科学基金资助项目 (5991 9390 )，Schlumberger BGC资助项目 |
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| 摘 要： | 针对岩石混凝土类材料 ,提出了损伤局部化分叉模型。根据材料发生损伤局部化分叉的充要条件 ,对平面应变和平面应力情况下单轴拉伸、纯剪以及单轴压缩情况下的局部化结果进行了分叉分析 ,并通过数值模拟分析比较 ,说明文中模型是可行的 ,且已应用于拱坝坝踵开裂分析中。
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| 关 键 词： | 损伤局部化 分叉分析 数值模拟 |
| 文章编号： | 1000-4548(2003)01-0080-04 |
| 修稿时间： | 2002年4月2日 |
A damage localization bifurcation model for rock-concrete-like materials and its application |
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| ZHAO Jidong,ZHOU Weiyuan,HUANG Yansong,YANG Ruoqiong.A damage localization bifurcation model for rock-concrete-like materials and its application[J].Chinese Journal of Geotechnical Engineering,2003,25(1):80-83. |
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| Authors: | ZHAO Jidong ZHOU Weiyuan HUANG Yansong YANG Ruoqiong |
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| Affiliation: | Department of Hydraulic Engineering Tsinghua University Beijing 100084 China |
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| Abstract: | The paper presents a damage localization bifurcation model for rock concrete like materials. The necessary and sufficient conditions for the occurrence of damage localization were discussed and the critical hardening modulus and localization orientation were presented. Several simple cases were discussed and the results were verified by numerical simulations of FEM. The model is applied to the cracking simulation of the heel of an arch dam during the course of impounding. |
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| Keywords: | damage localization bifurcation analysis numerical simulation |
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