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The stress-velocity relationship of twinning partial dislocations and the phonon-based physical interpretation 期刊论文
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2017, 卷号: 60, 期号: 11
作者:  Wei YJ(魏宇杰);  Peng SY(彭神佑);  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mechan, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.;  Wei, YJ (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
浏览  |  Adobe PDF(6735Kb)  |  收藏  |  浏览/下载:352/103  |  提交时间:2017/12/18
Dislocation Mobility  Transverse And Longitudinal Phonons  Subsonic And Supersonic Velocity  Stress-velocity Relationship  Molecular Dynamics  
Strength gradient enhances fatigue resistance of steels 期刊论文
SCIENTIFIC REPORTS, 2016, 卷号: 6, 页码: 22156
作者:  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)  |  收藏  |  浏览/下载:527/115  |  提交时间:2016/03/21
Dislocation Strengthening without Ductility Trade-off in Metastable Austenitic Steels 期刊论文
SCIENTIFIC REPORTS, 2016, 卷号: 6, 页码: 35345
作者:  Liu JB;  Jin YB;  Fang XY;  Chen CX;  Feng Q;  Liu XW;  Chen YZ;  Suo T;  Zhao F;  Huang TL;  Wang HT;  Wang X;  Fang YT;  Wei YJ(魏宇杰);  Meng L;  Lu J;  Yang W;  Wang, HT (reprint author), Zhejiang Univ, Inst Appl Mech, Hangzhou 310027, Zhejiang, Peoples R China.;  Lu, J (reprint author), City Univ Hong Kong, Dept Mech & Biomed Engn, Hong Kong, Hong Kong, Peoples R China.
浏览  |  Adobe PDF(2322Kb)  |  收藏  |  浏览/下载:416/97  |  提交时间:2016/12/08
Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2015, 卷号: 112, 期号: 47, 页码: 14501-14505
作者:  Wu XL(武晓雷);  Yang MX;  Yuan FP(袁福平);  Wu GL;  Wei YJ(魏宇杰);  Huang XX;  Zhu YT;  Wu, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
浏览  |  Adobe PDF(1526Kb)  |  收藏  |  浏览/下载:1119/255  |  提交时间:2016/01/08
Back-stress Hardening  Heterogeneous Lamella Structure  Ductility  Strength  Strain Partitioning  
Spiral fracture in metallic glasses and its correlation with failure criterion 期刊论文
ACTA MATERIALIA, 2015, 卷号: 99, 页码: 206-212
作者:  Lei XQ(雷现奇);  Wei YJ(魏宇杰);  Wei BC(魏炳忱);  Wang WH(汪卫华);  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
浏览  |  Adobe PDF(1311Kb)  |  收藏  |  浏览/下载:353/107  |  提交时间:2016/01/08
Metallic Glasses  Failure Criterion  Mohr-coulomb  Spiral Fracture  
Notch strengthening or weakening governed by transition of shear failure to normal mode fracture 期刊论文
SCIENTIFIC REPORTS, 2015, 卷号: 5, 页码: 10537
作者:  Lei, XQ;  Li, CL;  Shi XH(施兴华);  Xu XH(许向红);  Wei YJ(魏宇杰);  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
浏览  |  Adobe PDF(2375Kb)  |  收藏  |  浏览/下载:491/100  |  提交时间:2015/07/21
Evading the strength- ductility trade-off dilemma in steel through gradient hierarchical nanotwins 期刊论文
NATURE COMMUNICATIONS, 2014, 卷号: 5, 页码: 3580
作者:  Wei YJ(魏宇杰);  Li YQ(李永强);  Zhu LC(祝连春);  Liu Y(刘垚);  Lei XQ(雷现奇);  Wang G;  Wu YX;  Mi ZL;  Liu JB;  Wang HT;  Gao HJ;  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
浏览  |  Adobe PDF(3096Kb)  |  收藏  |  浏览/下载:2100/455  |  提交时间:2014/06/05
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
作者:  魏宇杰;  Wei, YJ(reprint author) Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China
Adobe PDF(942Kb)  |  收藏  |  浏览/下载:578/190  |  提交时间:2014/11/05
纳米晶体  晶界/孪晶界  强度/塑性  力学模型  
On the strain hardening and texture evolution in high manganese steels: Experiments and numerical investigation 期刊论文
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2013, 卷号: 61, 期号: 12, 页码: 2588-2604
作者:  Li YQ(李永强);  Zhu LC(祝连春);  Liu Y(刘垚);  Wei YJ(魏宇杰);  Wu YX;  Tang D;  Mi ZL;  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Adobe PDF(6710Kb)  |  收藏  |  浏览/下载:1043/420  |  提交时间:2013/12/06
Twinning Induced Plasticity  Deformation Twinning  Strain Hardening  Crystal Plasticity  Finite-element Analysis  
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
作者:  Wei YJ(魏宇杰);  Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
Adobe PDF(520Kb)  |  收藏  |  浏览/下载:793/234  |  提交时间:2012/04/01
Single-crystal  Mechanical-properties  Molecular-dynamics  Maximum Strength  Gold Nanowires  Deformation  Metals  Copper  Microcompression  Plasticity