Julien Morthomas

+33(0)4 72 43 61 30
Position : Maître de Conférences
Adresse : 7 avenue Jean Capelle, Bâtiment Blaise Pascal, 5° étage 69621 Villeurbanne

Assistant Professor

Researches, Publications, Thesis/postdoctoral supervisionCommunications, Teachings


RESEARCH

Study by molecular dynamics simulations of the mechanical and thermal behaviors at the micro and macroscopic scale of the different classes of materials: metals, polymers and ceramics.


PUBLICATIONS

HAL link / Google Scholar link

     10. Elasticity and strength of silica aerogels: A molecular dynamics study on large volumes
           William Gonçalves, Julien Morthomas, Patrice Chantrenne, Michel Perez, Geneviève Foray and Christophe L. Martin
           Acta Materialia, Elsevier, 2018, 145, pp.165 - 174.

     3. Hydrodynamic attraction of immobile particles due to interfacial forces
          Julien Morthomas and Alois Würger
          Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2010, 81, pp.051405.


THESIS/POSDOCTORAL SUPERVISION (or participation)

- Liang Meng (10/2018 - ...) - Thesis - Modeling the mechanical behaviour of bulk metallic glasses under deformation at local scale: molecular origin of structural relaxations and the role of the composition on plasticity (Co-encadrant)
- Guojiang Lyu (10/2016 - 10/2019) - Thesis - Mechanical behaviour of bulk metallic glasses with heterogeneities: a molecualr dynamics study
- Wassim Kassem (10/2018 - 10/2019) - Postdoctoral research - Water surface effects on the mechanical properties of silica aerogels: a molecular dynamics study (Supervisor)
- Clémentine Panetier (09/2016 - 11/2019 ) - Thesis - Study of the behavior of Cs and Ba fission products and their interactions with Mo in stoichiometric and superstoichiometric UO2
- Matthias Nebouy - (10/2017 - ... ) - Thesis - Experience/simulation dual approach of the dynamic properties of thermoplastic elastomers (Co-encadrant)
- Zengqiang Zhaï (10/2015 - 09/2019) - Thesis - Nanostructured semi-crystalline polymers : from molecular dynamics (Co-encadrant)
- Morgane Mahaud (09/2013 - 06/2017) - Thesis - Molecular dynamics study of the mechanical behavior and rupture of irradiated elastomers (Co-directeur)
- Osamu Waseda (09/2013 - 12/2016) - Thesis - Atomic scale investigation of aging in metals (Co-directeur)
- William Gonçalves (09/2013 - 11/2016) - Thesis - Study of the mechanical properties of silica aerogels: modeling in molecular dynamics (Co-encadrant)
- Inas Issa (09/2012 - 01/2016) - Thesis - In situ TEM nanocompression and mechanical analysis of ceramic nanoparticles
- Jonathan Amodeo (09/2013 - 09/2015) - Postdoctoral research - In situ investigation of MgO nanocube deformation at room temperature (Supervisor)
- Deyana Tchitchekova (01/2012 - 09/2013) - Postdoctoral research - A novel method for calculating the energy barriers for carbon diffusion in ferrite under heterogeneous stress (Co-supervisor)

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COMMUNICATIONS

  • 2019
    - SOFT matter COMposites annual meeting - SOFTCOM 2019 Portonovo (Italy) - Poster
          M.Nébouy, C. Fusco, J. Morthomas, S. Jabbari-Farouji, G.P. Baeza and L. Chazeau
          Modeling shear-induced crystallization of segmented block copolymers: A coarse-grained molecular dynamics study
    - International conference of Liquid and Amorphous Metals conference - LAM 2019 Lyon (France) - Poster
          M. Liang, L. Chazeau, D. Rodney, J. Morthomas and C. Fusco
          Small-scale plasticity of CuZr metallic glass studied by Molecular Dynamics simulations
    - International Vaccum Insulation Symposium - IVIS 2019 Tokyo (Japan) - Oral
          J. Morthomas, P. Chantrenne, W.Gonçalves, M. Perez, C. Martin and G. Foray
          Mechanical behavior of silica aerogel
    -
    Colloque "Objectif développement durable - L'ingénierie se met au vert" - INSIS-CNRS (France) - Oral
           J. Morthomas, P. Chantrenne, W.Gonçalves, M. Perez, C. Martin and G. Foray
          Aerogels, simuler pour relever le défi énergétique
    - International Sol-Gel confrence - SolGel 2019 (Russia) - Poster
          J. Morthomas, P. Chantrenne, W.Gonçalves, M. Perez, C. Martin and G. Foray
          Aerogels: Mechanical and thermal properties measured by molecular dynamics
    - International Conference on Nonlinear Solid Mechanics - ICoNSoM 2019 (Italy) - Oral
          M. Mahaud, J. Morthomas, C. Fusco, M. Perez, G. Marque and L. Chazeau
          Role of the architecture on the mechanical properties of elastomer networks by coarse-graines molecular dynamics simulations
    - 17th International conference on Liquid and Amorphous Metals - LAM 2019 (France) - Oral
          G. Lyu, C. Fusco, D. Rodney and J. Morthomas
          Study of dynamical mechanical behavior of Cu64Zr36 metallic glass investigated by atomistic simulations
    -
    International conference Engineering Mechanics Institut - EMI 2019 (France) - Oral
           W. Kassem, P. Chantrenne, W.Gonçalves, G. Foray, M. Perez, C. Martin and J. Morthomas

  • 2018
    - Nanoscale and Microscale Heat Transfert VI - Eurotherm 2018 - NMHT-VI (Finlande) - Oral
          P. Chantrenne, W.Gonçalves, G. Foray, M. Perez, C. Martin and J. Morthomas
          A new method to predict the thermal conductivity of nanoporous material from atomic simulations
    - Damage in Polymeric Materials: from the molecular to the macroscopic scale - DPM18 in Clermont-Ferrand (France) - Oral
         C. Fusco, M. Mahaud, M. Perez, G. Marque, L. Chazeau and J. Morthomas
         Role of the architecture on the mechanical properties of elastomers network: a coarse-grained molecular dynamics study
    - Collaborative Computational Project for simulations of condensed phases - CCP5 in Manchester (England)
         -- M. Nebouy, J. Morthomas, C. Fusco, G. Baeza and L. Chazeau - Oral
             Coarse-grained modelling of semicrystalline thermoplastic elastomers
         --
    Z. Zenqiang, J. Morthomas, C. Fusco, M. Perez and O. Lame
              Molecular Topology of semicristallin polymers simulation of mono and ploydispers polymers
    - International Conference on Processing and Manufacturing of advanced materials - THERMEC' 2018 in Paris (France) - Oral
          J. Morthomas, W.Gonçalves, G. Foray, M. Perez, C. Martin and P. Chantrenne
          Idenfication of the thermal conductivity of silica aerogels from molecular dynamics simulations
    - European Mechanics of Materials Conference in Nantes (France) - Oral
         C. Martin, P. Chantrenne, W.Gonçalves, G. Foray, M. Perez and J. Morthomas
         The peculiar mechanical behavior of silica aerogels revealed by Molecular Dynamics simulations on large volumes
    - Matériaux in Strasbourg (France) - Oral
         -- J. Morthomas, W.Gonçalves, G. Foray, M. Perez, C.Martin and P. Chantrenne
             A new method to predict the thermal conductivity of nanoporous material from atomic simulations
         --
    J. Morthomas, W.Gonçalves, G. Foray, M. Perez, P. Chantrenne and C.Martin
             Utilisation de grands volumes pour la simulation de dynamique moléculaire du comportement mécanique des aérogels de silice
    - Workshops - LAMMPS for molecular dynamics simulations : from development to applications in Lyon (France) - Oral
        M. Perez, O. Waseda, F. Ribiero, P. Chantrenne and J. Morthomas

  • 2017
    - International conference on Radiation Effects in Insulators (REI) in Versailles (France) - Poster
          C. Panetier, Y. Pipon, C. Gaillard, N. Moncoffre, D. Mangin, .R. Ducher, R. Dubourg, L. Sarasin. J. Morthomas and J. Amodeo
          Thermal diffusion of Mo and Cs in UO2: damage and chemical effects
    -
    European polymer federation congress in Lyon (France) - Poster
          Z. Zenqiang, J. Morthomas, C. Fusco, M. Perez and O. Lame
          Molecular topology of semicrystalline polymers: simulation of mono and polydisperse systems
    -  Journées d'automne SF2M in Lyon (France) - Oral

          P. Chantrenne, W.Gonçalves, G. Foray, M. Perez, J. Morthomas and C. Martin
          Comportement mécanique des aérogels de silice par dynamique moléculaire

  • 2016
    - International workshop: Bridging-Time Scale Techniques and their Applications in Atomistic Computational Science (BRITS) in Dresde (Germany) - Oral
          O. Waseda, F. Ribiero, P. Chantrenne, J. Morthomas and M. Perez
          Formation of carbon Cottrell atmospheres and their effect on the stress field around an edge dislocation
    - 8th International Conference on Multiscale Materials Modeling (MMM) in Dijon (France)
          -- M. Mahaud, C. Fusco, M. Perez, G. Marque, L. Chazeau and J. Morthomas - Oral
               Polymer mechanical spectroscopy uising coarse-grained molecular dynamics
          --
    J. Amodeo, I. Issa, E.Maras, J. Réthoré, L. Joly-Pottuz, C. Esnouf, J. Morthomas, M. Perez, J. Chevalier, K. Masenelli-Varlot - Oral 
               MgO nanoparticle deformation at room temperature : insights from atomistic simulations and in situ TEM
          -- W.Gonçalves, G. Foray, M. Perez, P. Chantrenne, J. Morthomas and C. Martin - Poster
               Mechanical behavior of silica aerogel using Molecular Dynamics simulations: the first modelling step for a multi-scale approach
    - International seminar on Aerogels 2016 in Sophia Antipolis (France)
          -- W.Gonçalves, G. Foray, M. Perez, P. Chantrenne, J. Morthomas and C. Martin - Oral
               Molecular Dynamics simulations of mechanical properties of Silica Aerogel, the first modelling step for a multi-scale approach
          --
    W. Gonçalves, G. Foray, C. L. Martin, P. Chantrenne, J. Morthomas, M. Perez, J. Amodeo - Poster
               Nano-compression of silica aerogel aggregates using molecular dynamics simulations
    -
    Colloque "La métallurgie, quel avenir !" in Saint-Etienne (France) - Poster
           L. Joly-Pottuz, I. Issa, J. Rethore, C. Esnouf, J. Amodeo, J. Morthomas, V. Garnier, K. Masenelli-Varlot
           In-situ TEM Nano-compression and Mechanical Analysis of Nanoparticles

  • 2015
    - European Congress and Exhibition on Advanced Materials and Processes (EUROMAT) in Warsaw (Poland) - Oral
          -- W.Gonçalves, G. Foray, M. Perez, P. Chantrenne, J. Morthomas and C. Martin
               Molecular Dynamics simulations of mechanical properties of Silica Aerogel, the first modelling step for a multi-scale approach
          -- K. Masenelli-Varlot, I. Issa, J. Amodeo, L. Joly-Pottuz, J. Réthoré, C. Esnouf, J. Morthomas, J. Chevalier
               In situ compression in Transmission Electron Microscopy and mechanical analysis of ceramic nanoparticles
    -
    European Materials Research Society (E-MRS) in Warsaw (Poland) - Oral
          O. Waseda, F. Ribiero, P. Chantrenne, J. Morthomas and M. Perez
          Atomistic modeling of carbon Cottrell atmospheres in bcc iron
    -
    Computational Modeling of Fracture and Failure of Materials and Structures (CFRAC) in Cachan (France) - Oral
          M. Mahaud, C. Fusco, M. Perez, G. Marque, L. Chazeau and J. Morthomas
          Mechanical behavior and failure of irradiated filled elastomer using molecular dynamics
    -
    DEformation des Polymères Solides (DEPOS) in Brest (France) - Oral
          M. Mahaud, C. Fusco, M. Perez, G. Marque, L. Chazeau and J. Morthomas
          Polymer mechanical spectroscopy uising coarse-grained molecular dynamics
    - International Workshop GDRi Mecani and GDR Oxyfun in Louvain-la-neuve (Belgium) - Oral
           J. Amodeo, I. Issa, K. Masenelli-varlot, M. Perez, J. Morthomas, J. Chevalier
           Small-scale simulations of MgO nanoparticle compression tests
    -
    Plasticité in Grenoble (France) - Oral
           J. Amodeo, I. Issa, C. Esnouf, V. Garnier, L. Joly-Pottuz, J. Morthomas, J. Réthoré, J. Chevalier and K. Masenelli-Varlot
           Compression In Situ de Nanoparticules Céramiques : Microscopie Electronique en Transmission (MET) et Simulation »
  • 2014
    - Condensed Matter (CMD25-JMC14) in Paris (France) - Oral
          O. Waseda, F. Ribiero, P. Chantrenne, J. Morthomas and M. Perez
          Atomistic modeling of carbon Cottrell atmospheres in bcc iron
    - International workshop: Material for sustainable energy for applications: conversion, storage and efficiency (Mat4energy) in Grenoble (France) - Poster
          W.Gonçalves, G. Foray, M. Perez, P. Chantrenne, J. Morthomas and C. Martin
          Molecular Dynamics simulations of mechanical properties of Silica Aerogel
    -
    Matériaux in Montpellier (France) - Oral
          M. Mahaud, C. Fusco, M. Perez, G. Marque, L. Chazeau and J. Morthomas
         Simulation en dynamique moléculaire du comportement mécanique des polymères et élastomères
    -
    European Materials Resarch Society (E-MRS) in Warsaw (Poland) - Oral
           J. Amodeo, I. Issa, L. Joly-Pottuz, J. Rethore, K. Masenelli-Varlot, J. Chevalier, J. Morthomas and M. Perez
           Atomistic simulations of compression tests on ceramic nanoparticle
    - European Inter-Regional Conference on Ceramicsin Stuttgart (Germany) - Oral
        I. Issa, J. Amodeo, J. Réthoré, C. Esnouf, L. Joly-Pottuz, V. Garnier, J. Morthomas, J. Chevalier and K. Masenelli-Varlot
          In situ TEM Nano-compression & Mechanical Analysis of Ceramic Nanoparticles (2nd price Speaker Contest)
    - Gradschool CNRS Solid mechanics for nanoscientists in Autrans (France) - Poster
           I. Issa, J. Amodeo, E. Calvié, L. Joly-Pottuz, J. Réthoré, J. Chevalier, V. Garnier, J. Morthomas, C. Esnouf, T. Douillard, K. Masenelli-Varlot
           In situ TEM nanocompression and mechanical analysis of ceramic nanoparticles
    - Plasticité in Lyon (France) - Oral
           I. Issa, J. Amodeo, C. Esnouf, V. Garnier, L. Joly-Pottuz, J. Morthomas, J. Réthoré, J. Chevalier and K. Masenelli-Varlot
           Compression In Situ de Nanoparticules Céramiques : Microscopie Electronique en Transmission (MET) et Simulation »
  • 2009
    - Gordon research Conference " Microfluidics, Physics & Chemestry Of " in Lucca (Italia) - Poster
            J. Morthomas and A. Würger
           Hydrodynamic attraction of immobile particles due to interfacial forces
  • 2008
    -
    International Meeting on Thermodiffusion in Bonn (Germany) - Poster
            J. Morthomas and A. Würger
           Hydrodynamic attraction of immobile particles due to interfacial forces

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TEACHINGS

- Materials Science and Engineering departement - second undergraduate cycle of INSA Lyon
      + Lecture on Numeric Techniques for Ingineer - Matlab (80h of tutorial and 40h of project)
      + Lecture on Mechanics of deformable solid (14h of tutorial)
      + Material pratical (48h)
      + In charge of end of study projects 5th year

- P2I - Multidisciplinary Initiation to Engineering Course - first undergraduate cycle of INSA Lyon
      + P2I-7 : Numerical Modeling for the Engineer
           - lecture on Particles dynamics (20h tutorial)
           - small-Projects (8h) eand Projects (60h) - Projects Manager
      + P2I-8 : Waves, Signals and Images
           - Lecture on Introduction to Matlab (4h)

- Master NSE - NanoScale Engineering - second undergraduate cycle of University of Lyon
      + Lecture on Introduction to Molecular Dynamics (15h of tutorial and 16h of projects)

- Doctoral school Materials of University of Lyon
      + Lecture on Introduction to Molecular Dynamics (15h of tutorial and 16h of projects)

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