Laboratoire de Mécanique des Contacts et des Structures

A joint research unit UMR5259 of the INSA Lyon and the CNRS, the role of LaMCoS is to carry out research on understanding and controlling the behavior of mechanical structures and systems by studying their interfaces.

We innovate to improve understanding of fundamental phenomena to anticipate major societal challenges and respond to technological problems in the fields of Transport, Energy, Health, Biomedicine, Sport and Machine Tools.

An overview of the scientific results of the laboratory

  • Finite element simulation of the ballooning of a Zircaloy-4 sheath under conditions simulating a LOCA. Several physics involved, including elasto-v...
  • Hybrid vibration control
  • Flange roller-end contact: numerical (FEM) vs experimental (interferometry) values of the lubricant film thickness (Trybogyr)
  • Numerical prediction of flow through a spur gear (Marchesse et al. 2015)
  • Molecular Dynamics simulation of ZDDP effects on friction in nano-scale lubricated contacts
  • Surface measured with roughness meter (Amplitude ~1 µm, surface size ~ 600 µm x 480 µm)
  • <a href='./files/apercu_deroulant/pdf/10_EN.pdf'>Efficient multigrid FE solver</a>
  • Tribological study of a bolted interface subjected to vibration: micro-slip and micro-detachment measured by image correlation
  • Package drop test: forces on the protected object and energy distribution
  • Thermal memory effect
  • Load passage for a rough contact on a granular mass and illustration of the maximum shear stress
  • Monitoring of Rotating Machines in evolving and unstable environnement: Application to wind turbines
  • Equipex Phare
  • <a href='./files/apercu_deroulant/pdf/11_EN.pdf'>'Measurement' of pressure spike & lubricant rheology</a>
  • Nonlinear dynamics of on-board structure equipped with elastomer mounts
  • Nonlinear vibrations of M/NEMS resonant sensors
  • Bio-tribology for the prevention, diagnosis and early treatment of pathologies
  • Plane stresses in a part subjected to an explicit dynamic impact (source: Jean Di Stasio's Michelin CIFRE PhD)
  • Explosion tests carried out at the DGA TN Tourris site
  • Active control of embedded electronic cards
  • Simulation of rolling contact on an elastic-plastic heterogeneous mass
  • Stress at the root of a spiral bevel gear
  • Explicit-implicit co-simulation (Zebulon / Europlexus)
  • Rotor demonstrator on PMA
  • Adhesive contact
  • Boundary layer in an EHL contact
  • Example of a multiparametric digital twin for welding (PhD by Y. LU, AREVA-SAFRAN-LAMCOS Chair)
  • 2dof electromagnetic generator for railway applications
  • Multiscale topological optimisation (PhD by T.Djourachkovitch)
  • Pressure perturbations due to an indent crossing a contact
  • Validation of the hybrid modular model: Comparison of tooth pressure with an EF model for thin-walled gears (source: CIFRE Safran Helicopter Engine...
  • Control of rotating machinery supported by Active Magnetic Bearings (AMB)
  • Contact spalling
  • Lipid structures of synovial fluid in healthy and arterial cases
  • Shear angles during thermoforming of thermoplastic prepregs Experimental-simulation comparisons
  • Equivalent stress field generated by a rolling contact on a heterogeneous viscoelastic mass
  • 3D discrete simulation of wear flow in dry contact
  • Tactile perception
  • Visco-elastic contact
  • Study of losses in transmission belts
  • Deformations of the vascular structure under the effect of inserted tools (M. Menut PhD)
  • Original electrical application architecture with strong electro-magnetic-mechanical coupling (© Leroy-Somer)
  • Diagnostic and monitoring of rotating parts in vehicles
  • Optimisation of the shape and position of the ribs of an aircraft wing loaded in bending at constant mass. Compliance reduced by 80%
  • Elasto-Visco-Plastic Buckling of Thick Shell [Jacquet et al. 2021]
  • <a href='./files/apercu_deroulant/pdf/13_EN.pdf'>Pressure distribution between an oil control ring and a textured liner</a>
  • Rotating machine on active magnetic bearings
  • Advanced Chebyshev expansion for identification on continuous structures
  • Understanding the early detection of bearing defects in non-stationary conditions
  • Hybrid vibration control
  • Silent wheel: Identification and control
  • <a href='./files/apercu_deroulant/pdf/12_EN.pdf'>Textured cylinder-liner surface</a>
  • Mesoscopic analysis of the compaction of a 3D reinforcement Experimental-simulation comparisons
  • Multiscale topological optimisation (PhD by T.Djourachkovitch)
  • Phonons in a nanocomposite with different elastic contrasts simulated by Finite Elements
  • Distributed piezoelectric sensors for boundary forces measurements
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The last 10 publications of the laboratory

  • A review of characteristic lengths in the coupled criterion framework and advanced fracture models
    By : Molnar, Gergely, Doitrand, Aurelien, Estevez, Rafael, Gravouil, Anthony
    COMPTES RENDUS MECANIQUE - Published : 2025
  • Creep constitutive model for salt rock considering loading and unloading path based on state variables
    By : Fan, Jinyang, Yang, Fan, Li, Zongze, Zou, Yang, Chen, Jie, Jiang, Deyi, Nelias, Daniel
    GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES - Published : DEC 2025
  • Impact of a prophylactic mesh on the biomechanics of abdominal wall closure: an animal study
    By : Le Ruyet, Anicet, Pillet, Baptiste, Vegleur, Anthony, Jourdan, Arthur, Bel-Brunon, Aline, Boure, Ludovic, Pierrat, Baptiste
    JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS - Published : AUG 2025
  • On-the-fly adaptive sampling strategy for data-driven computational mechanics: Applications to computational homogenisation
    By : Rocha, Felipe, Platzer, Auriane, Leygue, Adrien, Stainier, Laurent
    MECHANICS OF MATERIALS - Published : AUG 2025
  • Case-Based Simulation to Support Complex Active Catheterization: Preliminary Results
    By : Badrou, Arif, de Turenne, Aurelien, Lescanne, Nathan, Szewczyk, Jerome, Blanc, Raphael, Hamila, Nahiene, Tardif, Nicolas, Bel-Brunon, Aline, Haigron, Pascal
    IRBM - Published : JUN 2025
  • Accuracy, consistency, and contextual understanding of large language models in restorative dentistry and endodontics
    By : Lafourcade, Claire, Kerouredan, Olivia, Ballester, Benoit, Richert, Raphael
    JOURNAL OF DENTISTRY - Published : JUN 2025
  • Identification of key parameter influence on efficiency of chain drive for track cycling - Preliminary results
    By : Lanaspeze, Gabriel, Best, Martin, Guilbert, Berengere, Cavoret, Jerome, Duval, Arnaud, Manin, Lionel, Ville, Fabrice
    MECHANICS & INDUSTRY - Published : JUN 9 2025
  • Video-based operational modal analysis of slender mechanical structures with neutral axis estimation via barycenter calculation
    By : Touzet, Jimmy, Alata, Olivier, Bonnardot, Frederic, Chesne, Simon, Andre, Hugo
    MECHANICS & INDUSTRY - Published : JUN 3 2025
  • A new formulation for convective heat transfer in oil jet lubricated spur gears
    By : Torres, Thibaut, Changenet, Christophe, Touret, Thomas, Guilbert, Berengere
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY - Published : JUN 4 2025
  • Chemo-Enzymatic Synthesis of Mixed Docosahexaenoic Acid Phosphatidylcholine Conjugates
    By : Lehoux, Jordan, Grosjean, Felix, Lobo, Alexandre, Lagarde, Michel, Bernoud-Hubac, Nathalie, Durand, Thierry, Crauste, Celine
    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY - Published : MAY 21 2025

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