MATHEGRAM: Multiscale analysis of thermomechanical behaviour of granular materials

Fully Resolved Simulation of Flow in the Pore Space


MATHEGRAM: Multiscale analysis of thermomechanical behaviour of granular materials


MATHEGRAM was an Initial Training Network funded by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement MATHEGRAM No 813202.  This was multidisciplinary and inter-sectoral consortium consisting of 10 leading academic and non-academic beneficiaries from six EU countries.  The project was led by Prof. Charley Wu, University of Surrey.


At Imperial College the team members were:

  • Marina Bortolotto (ESR6)

  • Dr. Tokio Morimoto (ESR7).  (Dr. Morimoto is now based at the University of Tokyo, Japan.).


Marina Bortolotto has worked to:

  • Understand the link between thermal changes at the particle scale and overall thermo-mechanical response of granular media through thermal characterisation experiments in a controlled-stress environment
  • Develop a dataset suited to validation of thermal particulate DEM codes.
Tokio Morimoto worked to:

  • Perform DEM modelling of thermal triaxial tests and to advance understanding of the link between contact configurations and thermal performance of granular materials
  • Simulate tests on model granular materials
  • Explore the sensitivity of thermal response to fabric and packing configuration.

Our research findings are documented in the following:

Morimoto, T., B Zhao, DMG Taborda, C O'Sullivan (2022) Critical appraisal of pore network models to simulate fluid flow through assemblies of spherical particles Computers and Geotechnics 150, 104900.

Morimoto, T., O’Sullivan, C., Taborda, D.G. (2022) Exploiting DEM to Link Thermal Conduction and Elastic Stiffness in Granular Materials ASCE Journal of Engineering Mechanics, 148(2) 10.1061/(ASCE)EM.1943-7889.0002054

Morimoto, T., O’Sullivan, C., Taborda, DMG (2021) Analytical and DEM studies of thermal stress in granular materials Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media EPJ Web of Conferences 249, 14018 (2021)