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The effective fracture strength and fracture toughness of solids with energy dissipation confined to localized strips 期刊论文
INTERNATIONAL JOURNAL OF PLASTICITY, 2019, 卷号: 120, 页码: 47-63
Authors:  Zeng XG;  Wei YJ(魏宇杰)
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Effective toughness  Fracture strength  Strain softening  Shear banding  Strip-yield model  
软化塑性带对材料宏观断裂强度及韧性影响的理论分析 会议论文
中国力学大会(CCTAM 2019), 中国浙江杭州, 2019-08-25~28
Authors:  曾霞光;  魏宇杰
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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)
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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)
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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)
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bearing steel  crack propagation  rolling contact fatigue  statistical analysis  
Defects guided wrinkling in graphene on copper substrate 期刊论文
CARBON, 2019, 卷号: 143, 页码: 736-742
Authors:  Pang ZQ(庞振乾);  Deng B;  Liu ZF;  Peng HL;  Wei YJ(魏宇杰)
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Wrinkling  Graphene  Grain boundary  Stone-wales defects  Binding energy  
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)
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graphene  strength  wrinkling  pentagon-heptagon rings  carbon honeycomb  
A dislocation-based solution for stress introduced by arbitrary volume expansion in cylinders 期刊论文
MATHEMATICS AND MECHANICS OF SOLIDS, 2019, 卷号: 24, 期号: 3, 页码: 598-615
Authors:  Wen JC(温济慈);  Wei YJ(魏宇杰)
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Volume expansion  shrinkage  infinitesimal dislocation  stress  lithiation  delithiation  nitriding  
Metal ductility evaluation by flattening test: The geometry dependence 期刊论文
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2019, 卷号: 170, 页码: 40-48
Authors:  Wang Y;  Yang GX;  Lei XQ(雷现奇);  Li Q;  Rong LJ;  Hu XF;  Wei YJ(魏宇杰)
View  |  Adobe PDF(2257Kb)  |  Favorite  |  View/Download:472/127  |  Submit date:2019/04/11
Flattening test  Plastic deformability  Gerson-Tvergaard-Needleman model  Failure  Finite element analysis