Continuum and atomistic scale computational mechanics for structures with small length scales. With on-demand call to molecular dynamics simulations and scale up to continuum level constitute models, where predictions can be made for laboratory accessible time and length scales.

Material systems including: crystal plasticity in singly/poly crystalline metals, interfacial/grain-boundary mechanics in nanostructured materials, amorphous solids, nanowires, soft materials.

Recent Publications

[1] Wenhui Xie, Yujie Wei*. Roughening for Strengthening and Toughening in Monolayer Carbon Based Composites. Nano Letters, 2021.
[2] Jici Wen, Qingrong Zou, Yujie Wei*. Physics-driven machine learning model on temperature and time-dependent deformation in lithium metal and its finite element implementation. Journal of the Mechanics and Physics of Solids, 2021: 104481.
[3] Zheng Yuan, Xianjia Chen, Lijun Ma, Qiang Li*, Shouguang Sun, Yujie Wei*. A segmented load spectrum model for high-speed trains and its inflection stress as an indicator for line quality. International Journal of Fatigue, 2021, 148: 106221.
[4] Lichao Yuan, Yujie Wei*. A multi-scale algorithm for dislocation creep at elevated temperatures. Theoretical and Applied Mechanics Letters, 2021: 100230.
[5] Xianqi Lei, Lichao Yuan, Liu Peng, Chengqi Sun, Bingchen Wei, Yujie Wei*. Fatigue endurance limit and crack front evolution in metallic glass. International Journal of Fatigue, 2020: 106004.
[6] Chuangchuang Duan, Yujie Wei*. Scaling of internal dissipation of polycrystalline solids on grain-size and frequency. Acta Materialia, 2020. 201: p. 350-363.
[7] Shenyou Peng, Yujie Wei*, Huajian Gao*. Nanoscale precipitates as sustainable dislocation sources for enhanced ductility and high strength. PNAS, 2020, 117(10).
[8] Zhenghua Chang, Ronggui Yang*, Yujie Wei*. The linear-dependence of adhesion strength and adhesion range on temperature in soft membranes. Journal of the Mechanics and Physics of Solids, 2019, 132: 103697.
[9] Shenyou Peng, Yujie Wei*, Zhaohui jin,Wei Yang. Supersonic Screw Dislocations Gliding at the Shear Wave Speed. Physical Review Letters, 2019, 122(4).
[10] Zeng XG,Yujie Wei*. The effective fracture strength and fracture toughness of solids with energy dissipation confined to localized strips. International Journal of Plasticity,2019,120:47-63.

Copyright © Group of Mechanics of Small Scale Structures,the State Key Laboratory of Nonlinear Mechanics,Institute of Mechanics, CAS
Supported by:Library of Institute of Mechanics,Wuhan Branch of National Science Library, Ver.20130917