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Grain boundary diffusion and viscous flow governed mechanical relaxation in polycrystalline materials 期刊论文
SCIENCE CHINA-MATERIALS, 2022, 卷号: 65, 期号: 5, 页码: 1403-1412
Authors:  Duan CC(段闯闯);  Wei YJ(魏宇杰)
Adobe PDF(2497Kb)  |  Favorite  |  View/Download：181/32  |  Submit date：2022/10/23
grain boundary diffusion  viscous flow  internal friction spectrum  polycrystalline materials  Zener-Ke dissipation  
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：311/80  |  Submit date：2019/12/02
graphene  strength  wrinkling  pentagon-heptagon rings  carbon honeycomb  
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
Authors:  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.
View  |  Adobe PDF(6735Kb)  |  Favorite  |  View/Download：372/112  |  Submit date：2017/12/18
Dislocation Mobility  Transverse And Longitudinal Phonons  Subsonic And Supersonic Velocity  Stress-velocity Relationship  Molecular Dynamics  
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
View  |  Adobe PDF(942Kb)  |  Favorite  |  View/Download：579/190  |  Submit date：2014/11/05
纳米晶体  晶界/孪晶界  强度/塑性  力学模型  
Tunable band structures of polycrystalline graphene by external and mismatch strains 期刊论文
Acta Mechanica Sinica, 2012, 卷号: 28, 期号: 6, 页码: 1539-1544
Authors:  Wu JT(吴江涛);  Shi XH(施兴华);  Wei YJ(魏宇杰);  Wei YJ(魏宇杰)
Adobe PDF(3407Kb)  |  Favorite  |  View/Download：933/254  |  Submit date：2013/01/31
Graphene  Grain Boundary  Defects  Strain  Band Gap