Fracture design of medium carbon steel with extra-low cyclic fatigue under cantilever bending and torsional loading | |
Duan, Hong-Yan; Sang, Yuan-Cheng; Li, You-Tang | |
2015-09-25 | |
发表期刊 | Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment |
ISSN | 10096264 |
卷号 | 36期号:9页码:55-60 |
摘要 | In order to study the ultra low cycle fatigue fracture parameters and fracture mechanism of the medium carbon steel under cantilever bending and torsional loading, fatigue lifetime of the notched specimens with different notch tip radius were tested by using electro-hydraulic high-frequency fatigue test machine with a special fixture for cantilever bending and torsional loading. The morphology of the fatigue fracture was observed by means of SEM. The results show that the optimum parameters for the fracture design are as follow: the tip radius of notch is 0.1-0.3 mm and the ratio of the notch depth to the specimen diameter, t/b, is 0.075 for the designed samples. Fractography analysis show that multiple fatigue crack originations are observed, and the mode I crack plays the leading role under the fracture surface cantilever bending and torsional loading for the crack propagation. Secondary cracks, tear ridges and fatigue striations exist on the propagation area of the tested specimen fracture surface. ©, 2015, Editorial Office of Transactions of Materials and Heat Treatment. All right reserved. |
关键词 | Carbon steel Cracks Fatigue of materials Fatigue testing Fracture mechanics Hydraulic machinery Nanocantilevers Stress analysis Structural loads Electro-hydraulics Fatigue striations Fatigue test machine Fracture design Fracture mechanisms Low cycle fatigues Medium-carbon steels Torsional loadings |
收录类别 | EI |
语种 | 中文 |
出版者 | Editorial Office of Transactions of Materials and Heat Treatment |
EI入藏号 | 20154401471068 |
EI主题词 | Fracture |
EI分类号 | 408.1 Structural Design, General ; 545.3 Steel ; 632.2 Hydraulic Equipment and Machinery ; 761 Nanotechnology ; 931.1 Mechanics ; 933 Solid State Physics ; 951 Materials Science |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/150337 |
专题 | 机电工程学院 学报编辑部 |
作者单位 | School of Mechanical & Electronic Engineering, Lanzhou University of Technology, Lanzhou, China |
第一作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Duan, Hong-Yan,Sang, Yuan-Cheng,Li, You-Tang. Fracture design of medium carbon steel with extra-low cyclic fatigue under cantilever bending and torsional loading[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2015,36(9):55-60. |
APA | Duan, Hong-Yan,Sang, Yuan-Cheng,&Li, You-Tang.(2015).Fracture design of medium carbon steel with extra-low cyclic fatigue under cantilever bending and torsional loading.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,36(9),55-60. |
MLA | Duan, Hong-Yan,et al."Fracture design of medium carbon steel with extra-low cyclic fatigue under cantilever bending and torsional loading".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 36.9(2015):55-60. |
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