| 基于XFEM的重力坝裂纹开展数值分析研究 |
| |
| 引用本文： | 郑安兴,武亮. 基于XFEM的重力坝裂纹开展数值分析研究[J]. 中国农村水利水电, 2011, 0(3) |
| |
| 作者姓名： | 郑安兴 武亮 |
| |
| 作者单位： | 昆明理工大学,云南,昆明,650224 |
| |
| 摘 要： | 扩展有限元法是近年来出现的一种在常规有限元框架内求解不连续问题的数值方法.利用扩展有限元法分别分析了网格密度、廊道、坝基弹性模量对混凝土重力坝裂纹开展方向的影响.计算结果表明,网格密度对裂纹扩展方向影响不大;裂纹扩展方向有靠向廊道的趋势;坝基弹模对重力坝裂纹的扩展方向几乎没有影响,随着坝基弹模的增大,裂纹扩展长度加大.
|
| 关 键 词： | 扩展有限元 重力坝 裂纹 数值模拟 混凝土 |
Research on Numerical Simulation of Crack Growth of Gravity Dam Based on XFEM |
| |
| MENG An-xing , WU liang. Research on Numerical Simulation of Crack Growth of Gravity Dam Based on XFEM[J]. China Rural Water and Hydropower, 2011, 0(3) |
| |
| Authors: | MENG An-xing WU liang |
| |
| Affiliation: | ZHENG An-xing,WU liang(Kunming University of Technology,Kunming 650224,China) |
| |
| Abstract: | The extended finite element method(XFEM) is a numerical method for modeling discontinuities within a standard finite element framework in recent few years.The effect of grid density,gallery,dam foundation elastic constant on the crack growth direction of concrete gravity dams by the extended finite element method.The results demonstrate that grid density has no more influence on the crack growth direction and the crack growth direction leans to gallery on the trend.Dam foundation elastic constant has little... |
| |
| Keywords: | extended finite element gravity dam crack numerical simulation concrete |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
