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纳米金属材料的界面力学行为研究 期刊论文
金属学报, 2014, 卷号: 50, 期号: 2, 页码: 183-190
Authors:  魏宇杰;  Wei, YJ(reprint author) Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China
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纳米晶体  晶界/孪晶界  强度/塑性  力学模型  
Formation sequences and roles of multiple deformation twins during the plastic deformation in nanocrystalline fcc metals 期刊论文
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 卷号: 580, 页码: 58-65
Authors:  Yuan FP(袁福平);  Wu XL(武晓雷);  Yuan, FP (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, 15,North 4th Ring,West Rd, Beijing 100190, Peoples R China.
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Nanocrystalline Metals  Multiple Twins  Molecular Dynamics Simulation  Plastic Deformation  
Towards more uniform deformation in metallic glasses: The role of Poisson's ratio 期刊论文
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 卷号: 560, 页码: 510-517
Authors:  Wei YJ(魏宇杰);  Lei XQ(雷现奇);  Huo LS;  Wang WH;  Greer AL;  Wei, YJ (reprint author), Chinese Acad Sci, LNM, Inst Mech, State Key Lab Nonlinear Mech, Bei Si Huan Xi Rd 15, Beijing 100190, Peoples R China.
Adobe PDF(862Kb)  |  Favorite  |  View/Download:1146/450  |  Submit date:2013/03/07
Bending Test  Metallic Glasses  Micromechanical Modelling  Plastic Deformation  Shear Bands  
How does the initial free volume distribution affect shear band formation in metallic glass? 期刊论文
Science China-Physics Mechanics & Astronomy, 2011, 卷号: 54, 期号: 8, 页码: 1488-1494
Authors:  Chen Y(陈艳);  Jiang MQ(蒋敏强);  Dai LH(戴兰宏);  Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
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Metallic Glass  Free Volume  Shear Band  Yield Strength  Inhomogeneous Deformation  Mechanical-properties  Amorphous-alloys  Room-temperature  Plasticity  Ductility  Behavior  Flow  Bmgs  
Prediction of the initial thickness of shear band localization based on a reduced strain gradient theory 期刊论文
International Journal of Solids and Structures, 2011, 卷号: 48, 期号: 21, 页码: 3099-3111
Authors:  Chen SH(陈少华);  Feng B(冯彪);  Wei YG(魏悦广);  Wang ZQ(王自强);  Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
Adobe PDF(916Kb)  |  Favorite  |  View/Download:1090/294  |  Submit date:2012/04/01
Shear Band Localization  Thickness  Tilt Angle  Strain Gradient Theory  Metal-matrix Composites  Single-crystals  Couple Stress  Mechanical-properties  Indentation Hardness  Deformation-theory  Plasticity  Substrate  Nanoindentation  Elasticity  
A micromechanics-based strain gradient damage model for fracture prediction of brittle materials - Part II: Damage modeling and numerical simulations 期刊论文
International Journal of Solids and Structures, 2011, 卷号: 48, 期号: 24, 页码: 3346-3358
Authors:  Li J;  Pham T;  Abdelmoula R;  Song F(宋凡);  Jiang CP(蒋持平);  Li, J (reprint author), Univ Paris 13, LSPM, Inst Galilee, CNRS UPR 3407, 99 Ave Jean Baptiste Clement, F-93430 Villetaneuse, France
Adobe PDF(1996Kb)  |  Favorite  |  View/Download:861/228  |  Submit date:2012/04/01
Strain Gradient Theory  Damage  Fracture  Microcracks  Brittle Materials  Size Effect  Dynamic Fracture  Crack-growth  Plasticity  Stress  Localization  Formulation  Criterion  Toughness  Continuum  Elements  
Anisotropic size effect in strength in coherent nanowires with tilted twins 期刊论文
Physical Review B, 2011, 卷号: 84, 期号: 1, 页码: 14107
Authors:  Wei YJ(魏宇杰);  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
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Single-crystal  Mechanical-properties  Molecular-dynamics  Maximum Strength  Gold Nanowires  Deformation  Metals  Copper  Microcompression  Plasticity  
The kinetics and energetics of dislocation mediated de-twinning in nano-twinned face-centered cubic metals 期刊论文
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2011, 卷号: 528, 期号: 3, 页码: 1558-1566
Authors:  Wei YJ(魏宇杰);  Wei, YJ (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Bei Si Huan Xi Rd 15, Beijing 100190, Peoples R China
Adobe PDF(1356Kb)  |  Favorite  |  View/Download:1085/317  |  Submit date:2012/04/01
De-twinning  Twinning  Nano-twinned Polycrystalline  Strength Softening  Strain-rate Sensitivity  Molecular-dynamics Simulation  Nanocrystalline Fcc Metals  Embedded-atom-method  Nanoscale Twins  Mechanical-behavior  Nanotwinned Copper  Deformation Mechanisms  Nanostructured Metals  Plastic-deformation