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F. Liu PhD (Fengxian)

Assistant Professor

About Me

 

I gained my Ph.D. in Mechanical Engineering from Tsinghua University in 2018.  After that, I became a postdoctoral research associate at the University of Oxford. In 2022, I joined the University of Twente as an assistant professor in the research group of Computational Design of Structural Materials.  

I specialize in the computational analysis of materials and structures, with particular focus on multi-scale materials and multi-physics problems. This has broad engineering applications ranging from the power generating industry to micromechanical materials.

 

Expertise

Mathematics
Creep
Crystal Plasticity
Dislocation
Dislocation Dynamics
Engineering & Materials Science
Dislocations (Crystals)
Screw Dislocations
Vacancies
Physics & Astronomy
Thermomigration

Research

My research focuses on understanding the behavior of complex, hierarchically structured materials through computational methods. This requires the combination of modeling techniques at different time and length scales. I work on developing multiscale and multiphysics computational methods, to advance the understanding of the microstructure-property-performance relationship of metallic materials, so as to investigate the degree to which microstructures are tunable to support the engineering of manufactured materials for temperature and radiation resistance.

My main research themes are:

  • Material defect physics and science (precipitates, vacancies/interstitials, dislocation loops, etc.)
  • Discrete dislocation plasticity
  • Coupled mechanical/diffusion modeling
  • Finite Element Modeling
  • Phase Field Modeling

Publications

Recent
Liu, F. X., Cocks, A. C. F., & Tarleton, E. (2021). Dislocation dynamics modelling of the creep behaviour of particle-strengthened materials. Proceedings of the Royal Society A: mathematical, physical and engineering sciences, 477(2250), [20210083]. https://doi.org/10.1098/rspa.2021.0083
Cui, Y., Liu, Z., Hu, J. , Liu, F., & Zhuang, Z. (2020). 位错动力学在极端环境力学中的发展及应用. Gaoya Wuli Xuebao/Chinese Journal of High Pressure Physics, 34(3), [030101]. https://doi.org/10.11858/gywlxb.20200516
Liu, F., Cocks, A., Gill, S. P. A., & Tarleton, E. (2020). An improved method to model dislocation self-climb. Modelling and simulation in materials science and engineering, 28(5), [055012]. https://doi.org/10.1088/1361-651X/ab81a8
Liu, F., Cocks, A. C. F., & Tarleton, E. (2020). A new method to model dislocation self-climb dominated by core diffusion. Journal of the mechanics and physics of solids, 135, [103783]. https://doi.org/10.1016/j.jmps.2019.103783
Xie, D. G., Nie, Z-Y., Shinzato, S., Yang, Y-Q. , Liu, F. X., Ogata, S., Li, J., Ma, E., Shan, Z-W. , & Liu, F. (2019). Controlled growth of single-crystalline metal nanowires via thermomigration across a nanoscale junction. Nature communications, 10(1), [4478]. https://doi.org/10.1038/s41467-019-12416-x
Haley, J. C. , Liu, F., Tarleton, E., Cocks, A. C. F., Odette, G. R., Lozano-Perez, S., & Roberts, S. G. (2019). Helical dislocations: Observation of vacancy defect bias of screw dislocations in neutron irradiated Fe–9Cr. Acta materialia, 181, 173-184. https://doi.org/10.1016/j.actamat.2019.09.031
Wang, P. , Liu, F., Cui, Y., Liu, Z., Qu, S., & Zhuang, Z. (2018). Interpreting strain burst in micropillar compression through instability of loading system. International journal of plasticity, 107, 150-163. https://doi.org/10.1016/j.ijplas.2018.04.002
Hu, J-Q., Liu, Z., Cui, Y. , Liu, F., & Zhuang, Z. (2017). A New View of Incipient Plastic Instability during Nanoindentation. Chinese Physics Letters, 34(4), [046101]. https://doi.org/10.1088/0256-307X/34/4/046101
Liu, Z. L., Lin, P., Zhuang, Z. , & Liu, F. (2017). Numerical investigations of helical dislocations based on coupled glide-climb model. International journal of plasticity, 92, 2-18. https://doi.org/10.1016/j.ijplas.2017.02.015

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Contact Details

Visiting Address

University of Twente
Faculty of Engineering Technology
Horst Complex (building no. 20), room N204
De Horst 2
7522LW  Enschede
The Netherlands

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Mailing Address

University of Twente
Faculty of Engineering Technology
Horst Complex  N204
P.O. Box 217
7500 AE Enschede
The Netherlands