Quantitative analysis of transmission shafts after torsion fatigue test

被引：0
|
作者：
Liu, Xinfing [1 ]
Zhang, Weifang [1 ]
Tao, Chunhu [1 ]
机构：
[1] Beijing Inst Aeronaut Mat, AVIC, Failure Anal Ctr, Beijing 100095, Peoples R China
来源：
PROGRESSES IN FRACTURE AND STRENGTH OF MATERIALS AND STRUCTURES, 1-4 | 2007年 / 353-358卷
关键词：
transmission shaft; fractography quantitative analysis;
D O I：
10.4028/www.scientific.net/KEM.353-358.2790
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Twelve transmission shafts were developed unilateralism torsion fatigue tests. Macroscopic and microscopic fracture features of transmission shafts were observed and analyzed. No defect was found in the origin which was usually located at the bolt bores or nearby the bolt bores because of the stress concentration. Using the fractography quantitative analysis technology the propagation life, the origination life and the relation curve between the crack length and the cycle numbers for all of the twelve shafts were estimated. For only one origin on the fracture surface the total life of the shaft with two expanding directions is usually obvious longer than that with one expanding direction, but the main propagation life is obvious smaller. However for two origins and two expanding directions on the fracture surface the total life of the shaft is usually shorter.
引用
收藏
页码：2790 / 2793
页数：4
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