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| 三维裂纹整体参数化模化方法 | |
| 引用本文： | 唐俊星,陆山. 三维裂纹整体参数化模化方法[J]. 航空动力学报, 2008, 23(4): 737-741 |
| 作者姓名： | 唐俊星 陆山 |
| 作者单位： | 西北工业大学,动力与能源学院,西安,710072;西北工业大学,动力与能源学院,西安,710072 |
| 摘 要： | 发展一种独立于几何结构基于参数设计的三维平片裂纹扩展有限元模拟通用方法.该方法通过包含整个裂纹面的镶嵌裂纹模型,具有裂纹体自动形成,模拟裂纹多自由度扩展的能力.通过多个典型的工程裂纹扩展模拟算例,说明该方法的精度、效率与通用性. |
| 关 键 词： | 航空、航天推进系统 三维裂纹扩展 应力强度因子 有限元 风扇盘 粉末高温合金 |
| 文章编号： | 1000-8055(2008)04-0737-05 |
| 收稿时间： | 2007-04-09 |
| 修稿时间： | 2007-04-09 |
A integral parameter-based modeling method for 3D crack |
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| TANG Jun-xing and LU Shan. A integral parameter-based modeling method for 3D crack[J]. Journal of Aerospace Power, 2008, 23(4): 737-741 | |
| Authors: | TANG Jun-xing and LU Shan |
| Affiliation: | School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: | A parameter-based and geometry independent general method was developed for the simulation of 3D planar crack propagation by using finite element method(FEM). This method,on the basis of introducing a crack model containing whole crack surfaces,has a capability of creating cracked block automatically and simulating crack propagation in a multiple degree way.The accuracy,efficiency and versatility of the method were demonstrated by comparison with other analytical or experimental results available in the literature. |
| Keywords: | aerospace propulsion system 3-D crack propagation stress intensity factor finite element fan disk superalloy powder |
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