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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

Non-permanent researchers (Post-docs, ATER, PhD students, engineers): Ismael Azehaf, Cristina Cavinato, Thibaud Cochereau, Abdelali Dadda, Dimitri Ferré Sentis, Mohamed Gassoumi, Rémi Granger, Sylvie Jauvert, Victoria Krasnoshlyk, Deepak Kunhappan, Tanguy Laurencin, Gergely Molnar, Corado Ningre, Josselin Noël, Franck Ott, Nahia Sassine, Maxime Teil, Camille Thibaut, Thibaut Viant

Visiting scientist: Per Isaksson (Univ. Uppsala, Suède)

Research volunteers: Jean-Louis Auriault, Pierre Dorémus


  • «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)
  • «Substituting Plastic Casings with Hydrophobic (Perfluorosilane treated) paper improves Biodegradability of Low-Cost Diagnostic Devices»
    Oyola-Reynoso, S.,, Kihereko, D.,, Chang, B.S.,, Mwangi, J.S.,, Halbertsma-Black,J.,, BLOCH, Thuo M.M.,, Nganga, M.M.,
    Industrial Crops and Products, 94, pp 294-298, (2016)