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Home > Équipes > Mécanique et Couplages Multiphysiques des Milieux Hétérogènes (CoMHet)

Mécanique et Couplages Multiphysiques des Milieux Hétérogènes (CoMHet)

ACTIVITIES - The CoMHet group develops research works centered on the multiscale mechanics and multiphysical couplings in divided systems (powders, fibers) and porous media. The common objective of these works is to characterize, understand and model the microstructures as well as the physical and mechanical properties of these systems. Activities of the CoMHet group are divided into four main research topics.

  • Mechanics and Physics of Fibrous Materials
  • Mechanics and Physics of Powders
  • Porous media: transfers, phase changes and microstructures
  • Fatigue, damage and rupture of heterogeneous materials

The research activities are carried out using tools and methods for:

Experimental Mechanics: mechanical testing under controlled environment (temperature, hygrometry) coupled with kinematical field measurements (DIC) and microstructure analysis (3D imaging using X-ray microtomography)

Modelling: multiscale and multiphysics modelling using theoretical (homogenisation with asymptotic expansions) and/or numerical methods (finite or discrete elements).


Team leader: Laurent Orgéas

Permanent researchers: Lucie Bailly, Arnaud Blaise, Jean-Francis Bloch, Frédéric Dufour, Christian Geindreau, Barthélémy Harthong, Didier Imbault, Robert Peyroux, Sabine Rolland du Roscoat, Ali Tourabi



  • «3D multiscale imaging of human vocal folds using synchrotron X-ray microtomography in phase retrieval mode»
    BAILLY, COCHEREAU, ORGEAS, Henrich Bernardoni, Nathalie (Gipsa-lab), ROLLAND, Mcleer-Florin, Anne (Iab), Robert, Yohann (Ladaf), Laval, Xavier (Gipsa-lab), Laurencin, Tanguy (3sr), Chaffanjon, Philippe (Ladaf, Gipsa-lab), Fayard, Barbara (Novitom), Boller, Elodie (Esrf, Il19),
    Scientific Reports, , pp , (2018)
  • «Homogeneous and heterogeneous rheology and flow-induced microstructures of a fresh fiber-reinforced mortar»
    F. Chalencon, P.J.J. Dumont, ORGEAS, G. Foray, J.Y. Cavaillé, E. Maire,
    Cement and Concrete Research, 82, pp 130-141, (2016)
  • «Paper-Based Microfluidic Devices by Asymmetric Calendaring»
    Oyola-Reynoso, S.,, Frankiewicz, C.,, Chang, B.,, Chen, J.,, BLOCH, Thuo, M.M.,,
    Biomicrofluidics, 11, pp 014104, (2017)
  • «Surface Polymerization of Perfluorosilane Treatments on Paper Mitigates HF Production upon Incineration»
    Oyola-Reynoso, S.,, Chen, J.,, Chang, B. S.,, BLOCH, Thuo, M.M.,
    RSC Advances, 6, pp 82233-82237, (2016)
  • «Recruiting Physi-sorbed Water in Surface Polymerization for Bio-Inspired Materials of Tunable Hydrophobicity»
    Oyola-Reynoso, S.,, Tevis, I.,D.,, Chen, J.,, Chang, B., S.,, Cinar, S.,, BLOCH, Thuo, M.,
    J. Mater. Chem. A, 4, pp 14729-14738, (2016)