Dr. Wei-Jian LIANG

E-mail : weijian.liang@polyu.edu.hk


Academic qualifications

  • Ph.D. in Civil Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, 2016 – 2020
  • B.Eng. (honor) in Theoretical and Applied Mechanics, Sun Yet-Sen University, China, 2012 – 2016

Professional experience (University)

  • Research Assistant Professor, The Hong Kong Polytechnic University, Hong Kong, 07/2022 - present
  • Post-doctoral Fellow, The Hong Kong University of Science and Technology, Hong Kong, 09/2020 - 07/2022
  • Visiting Scholar, University of California-Berkeley, United States, 09/2019 - 03/2020

Research interests

  • Multiscale modeling of granular materials
  • High-performance computing for meshfree methods

Topic 1:Multiscale modeling of granular materials

  • Contribution: developed MPM-DEM multiscale framework for tackling large deformation problems of granular materials.
  • Significance: offering a novel toolkit to capture the state- and path-dependent mechanical response of granular media in practical engineering setting without resorting to complicated phenomenological models.


  • Liang W., & Zhao J.* (2019). Multiscale modelling of large deformation in geomechanics. International Journal for Numerical and Analytical Methods in Geomechanics. 43, 1080–1114.
  • Liang W., Zhao J.*, Wu H., & Soga K. (2021). Multiscale modelling of anchor in sand. Journal of Geotechnical and Geoenvironmental Engineering, 147(9), 04021091.
  • Liang W., Zhao S., Wu H., & Zhao J.* (2021). Bearing capacity and failure of footing on anisotropic soil: A multiscale perspective. Computers and Geotechnics, 137, 104279.


Topic 2:High-performance computing for meshfree methods

  • Contribution: proposed high-performance computing algorithms for meshfree methods.
  • Significance: leveraging the efficiency of MPM or MPM-DEM so as to handle the large scale simulations.


  • Liang W., Zhao J.*, Wu H. & Zhao S. (2022). A scalable three-dimensional framework for continuum-discrete modeling of granular media. International Journal for Numerical Methods in Engineering. 123(12), 2872-2893.
  • Kularathna S., Liang W.*, Zhao T., Chandra B., Zhao J., & Soga K. (2021). A semi‐implicit materialpoint method based on fractional‐step method for saturated soil. International Journal for Numerical and Analytical Methods in Geomechanics, 45(10), 1405-1436.