| 三维有限元网格加密界面协调方法及在大坝开裂分析中的应用 |
| |
| 引用本文： | 强天驰,寇晓东,周维垣. 三维有限元网格加密界面协调方法及在大坝开裂分析中的应用[J]. 岩石力学与工程学报, 2000, 19(5): 562-562 |
| |
| 作者姓名： | 强天驰 寇晓东 周维垣 |
| |
| 作者单位： | 清华大学水利系,北京,100084 |
| |
| 基金项目： | 国家自然科学基金!( 5 993 9190 ) |
| |
| 摘 要： | 根据最小势能原理, 将有限单元疏密网格之间的界面刚度耦合到总刚中, 保证该界面两侧各相应点的位移和应变在界面上协调。使三维有限元疏密网格的过渡易于实现, 简化前处理工作, 使对有限元网格进行局部加密并追踪裂纹扩展易于实现。
|
| 关 键 词： | 最小势能原理耦合疏密网格界面过渡单元 |
| 收稿时间： | 1999-05-04 |
| 修稿时间： | 1999-07-12 |
THREE-DIMENSIONAL FEM INTERFACE COUPLED METHOD AND ITS APPLICATION TO ARCH DAM FRACTURE ANALYSIS |
| |
| Qiang Tianchi,Kou Xiaodong,Zhou Weiyuan. THREE-DIMENSIONAL FEM INTERFACE COUPLED METHOD AND ITS APPLICATION TO ARCH DAM FRACTURE ANALYSIS[J]. Chinese Journal of Rock Mechanics and Engineering, 2000, 19(5): 562-562 |
| |
| Authors: | Qiang Tianchi Kou Xiaodong Zhou Weiyuan |
| |
| Abstract: | According to the least potential energy method, the stiffness of the interface between two kinds of meshes is coupled into the whole stiff matrix. Then the continuity of the displacements at every point in the interface can be guaranteed. By this means, to change the density of the FEM mesh from a coarse mesh to a fine mesh is easily to be achieved. The pre processing work of FEM is much simplified. This method can be used to densify the mesh of a local area and to trace the cracking of this area. |
| |
| Keywords: | the least potential energy method couple coarse mesh and fine mesh interface transition element |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《岩石力学与工程学报》浏览原始摘要信息 |
|
点击此处可从《岩石力学与工程学报》下载全文 |
|
