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A segmented load spectrum model for high-speed trains and its inflection stress as an indicator for line quality 期刊论文
INTERNATIONAL JOURNAL OF FATIGUE, 2021, 卷号: 148, 页码: 12
Authors:  Yuan, Zheng;  Chen XJ(陈贤佳);  Ma, Lijun;  Li, Qiang;  Sun, Shouguang;  Wei YJ(魏宇杰)
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Load spectrum  Segmented Weibull distribution  Bogie frame  High-speed train  Inflection stress  
Fatigue endurance limit and crack front evolution in metallic glass 期刊论文
INTERNATIONAL JOURNAL OF FATIGUE, 2021, 卷号: 143, 页码: 9
Authors:  Lei XQ(雷现奇);  袁力超o;  Peng, Liu;  Sun CQ(孙成奇);  Wei BC(魏炳忱);  Wei YJ(魏宇杰)
Adobe PDF(9123Kb)  |  Favorite  |  View/Download：374/60  |  Submit date：2021/03/03
Fatigue endurance limit  Ultra-high cycle fatigue  Metallic glasses  Elliptical crack front  Stress intensity factor  
The formation of discontinuous gradient regimes during crack initiation in high strength steels under very high cycle fatigue 期刊论文
INTERNATIONAL JOURNAL OF FATIGUE, 2019, 卷号: 124, 页码: 483-492
Authors:  Sun CQ(孙成奇);  Zhou LL(周玲玲);  Liu JL;  Wang Y(王垚);  Wu XL(武晓雷);  Wei YJ(魏宇杰)
View  |  Adobe PDF(8304Kb)  |  Favorite  |  View/Download：349/136  |  Submit date：2019/09/09
Very high cycle fatigue  Gradient microstructure  Mechanism of crack initiation  Crack growth rate  
The influence of combined gradient structure with residual stress on crack-growth behavior in medium carbon steel 期刊论文
ENGINEERING FRACTURE MECHANICS, 2019, 卷号: 209, 页码: 369-381
Authors:  Wang Y(王瑶);  Yuan LC;  Zhang SJ(张诗嘉);  Sun CQ(孙成奇);  Wang WJ;  Yang GX;  Li Q;  Wei YJ(魏宇杰)
View  |  Adobe PDF(2613Kb)  |  Favorite  |  View/Download：422/165  |  Submit date：2019/04/11
Gradient material  Residual stress  Fatigue crack  Cyclic J-integral  Crack- growth rate  
Statistical analysis on rolling contact fatigue in railroad axle bearing steel 期刊论文
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2019, 卷号: 42, 期号: 3, 页码: 651-663
Authors:  Guo RB;  Yang GX;  Li ZY(李正阳);  Liu ZM;  Wei YJ(魏宇杰)
View  |  Adobe PDF(1973Kb)  |  Favorite  |  View/Download：1706/1454  |  Submit date：2019/04/11
bearing steel  crack propagation  rolling contact fatigue  statistical analysis  
Nanomechanics of graphene 期刊论文
NATIONAL SCIENCE REVIEW, 2019, 卷号: 6, 期号: 2, 页码: 324-348
Authors:  Wei YJ(魏宇杰);  Yang RG(杨荣贵)
View  |  Adobe PDF(1360Kb)  |  Favorite  |  View/Download：310/79  |  Submit date：2019/12/02
graphene  strength  wrinkling  pentagon-heptagon rings  carbon honeycomb  
Effects of intermittent loading on fatigue life of a high strength steel in very high cycle fatigue regime 期刊论文
INTERNATIONAL JOURNAL OF FATIGUE, 2018, 卷号: 117, 页码: 9-12
Authors:  Sun CQ(孙成奇);  Song QY;  Hu YP(胡远培);  Wei YJ(魏宇杰)
View  |  Adobe PDF(1739Kb)  |  Favorite  |  View/Download：606/118  |  Submit date：2018/12/12
Very high cycle fatigue  High strength steels  Intermittent loading  Ultrasonic fatigue technique  
Case study: The effect of running distance on the microstructure and properties of railroad axle bearings 期刊论文
WEAR, 2018, 卷号: 394, 页码: 159-165
Authors:  Guo RB;  Lei XQ(雷现奇);  Zhang DD;  Liu ZM;  Wang X;  Wei YJ(魏宇杰)
View  |  Adobe PDF(1589Kb)  |  Favorite  |  View/Download：438/174  |  Submit date：2018/10/30
Bearing steel  Fracture toughness  Gradient structure  Grain refinement  
Strength gradient enhances fatigue resistance of steels 期刊论文
SCIENTIFIC REPORTS, 2016, 卷号: 6, 页码: 22156
Authors:  Ma ZW(马知未);  Liu JB;  Wang G;  Wang HT;  Wei YJ(魏宇杰);  Gao HJ;  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Adobe PDF(6660Kb)  |  Favorite  |  View/Download：551/127  |  Submit date：2016/03/21
Crack instability of ferroelectric solids under alternative electric loading 期刊论文
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2015, 卷号: 81, 页码: 75-90
Authors:  Chen HS;  Wang HL;  Pei YM;  Wei YJ(魏宇杰);  Liu B;  Fang DN;  Liu, B (reprint author), Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China.
View  |  Adobe PDF(3589Kb)  |  Favorite  |  View/Download：377/140  |  Submit date：2015/09/22
Electro-thermal-mechanical Coupling  Crack Instability  Ferroelectric Materials  Safe Operating Area