| 飞力轮试验盘槽底裂纹损伤容限分析 |
| |
| 引用本文： | 陈光皓,王荣桥,洪其麟.飞力轮试验盘槽底裂纹损伤容限分析[J].航空动力学报,1994,9(4):416-418,446. |
| |
| 作者姓名： | 陈光皓 王荣桥 洪其麟 |
| |
| 作者单位： | 北京航空航天大学 |
| |
| 摘 要： | 用有限元和Ｊ积分相结合的方法，确定飞力轮试验盘裂纹尖端参量随裂纹尺寸的变化规律，并根据材料的断裂韧性确定临界裂纹长度。最后算出裂纹疲劳扩展寿命。计算结果与试验结果基本一致。提供的分析方法及计算程序在进行轮盘损伤容限设计分析方面有积极的参考价值
|
| 关 键 词： | 轮（机械元件） 疲劳裂纹 有限元法 J积分 应力强度因子 |
| 收稿时间： | 1993/11/1 0:00:00 |
| 修稿时间： | 1/1/1994 12:00:00 AM |
DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE |
| |
| Chen Guanghao,Wang Rongqiao and Hong Qilin.DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE[J].Journal of Aerospace Power,1994,9(4):416-418,446. |
| |
| Authors: | Chen Guanghao Wang Rongqiao and Hong Qilin |
| |
| Institution: | 4th Dept.,Beijing University of Aeronautics and Astronautics,,Beijing 100083;4th Dept.,Beijing University of Aeronautics and Astronautics,,Beijing 100083;4th Dept.,Beijing University of Aeronautics and Astronautics,,Beijing 100083 |
| |
| Abstract: | The damage tolerance of an experimental disk is analyzed in the light of fracture mechanics.The relation of crack tip parameter and crack length, a ,is determined by combination of the FEM and the J-integral method.The critical crack size ac is obtained based on the material toughness KIC .Then the crack propagation life of the disk is determined.The calculated results are consistent with the experimental data.Therefore,the present method as well as the computer program can be used for strength evaluation of a turbine disk. |
| |
| Keywords: | Wheels(Machine elements) Fatigue crack Finite element J-Integral Stress intensity factors |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
