| 许巍,杨宪峰,郭广平.基于振动的钛合金膜盘材料疲劳性能试验研究[J].实验力学,2018,33(2):239~244 |
| 基于振动的钛合金膜盘材料疲劳性能试验研究 |
| Experimental study of titanium alloy film disc fatigue performance of based on vibration fatigue measurement |
| 投稿时间：2016-12-23 修订日期：2017-11-06 |
| DOI：10.7520/1001-4888-16-282 |
| 中文关键词: 膜盘 线性振动 振动疲劳测试 失效模式 |
| 英文关键词:thin disc linear vibration vibration-based fatigue test failure mode |
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| 中文摘要: |
| 介绍了一种钛合金膜盘材料疲劳性能的试验研究，建立了闭环控制下的振动疲劳试验系统，完成了对该膜盘10° 角切片试样在振动条件下的疲劳试验，给出了该试样的疲劳应力-寿命曲线以及疲劳极限值，最后分析了切片试样振动疲劳的主要失效模式。结果表明：本试验方法高效可靠，时间和材料成本低，所得振动疲劳性能参数与旋转弯曲疲劳性能参数接近，而断口表现出典型的单侧起源的疲劳扩展特征。 |
| 英文摘要: |
| This paper presents an experimental study of fatigue performance of titanium alloy film disc. Firstly, a vibration fatigue experimental system under closed loop control was established. Then under vibration condition, fatigue experiment of the sliced sample of film disc with 10 degree angle was completed. The fatigue stress-life curve and the fatigue limit value of the sample were given. Finally, the main fatigue failure mode of sliced sample of film disc was analyzed. Results show that the experimental method presented in this paper has high efficiency and reliability. It is a time-saving and material-saving method. The obtained vibration fatigue performance parameters are very close to that of rotating bending fatigue testing, and fracture surface exhibits typical characteristics of crack propagation originated from single fatigue source. |
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