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

  • 3D discrete simulation of wear flow in dry contact
  • Nonlinear vibrations of M/NEMS resonant sensors
  • Pressure perturbations due to an indent crossing a contact
  • Shear angles during thermoforming of thermoplastic prepregs Experimental-simulation comparisons
  • Equipex Phare
  • Stress at the root of a spiral bevel gear
  • Simulation of rolling contact on an elastic-plastic heterogeneous mass
  • Mesoscopic analysis of the compaction of a 3D reinforcement Experimental-simulation comparisons
  • Active control of embedded electronic cards
  • Advanced Chebyshev expansion for identification on continuous structures
  • Velocity vectors in a carotid artery in healthy and pathological cases
  • <a href='./files/apercu_deroulant/pdf/11_EN.pdf'>'Measurement' of pressure spike & lubricant rheology</a>
  • Package drop test: forces on the protected object and energy distribution
  • Explosion tests carried out at the DGA TN Tourris site
  • Monitoring of Rotating Machines in evolving and unstable environnement: Application to wind turbines
  • Contact spalling
  • Hybrid vibration control
  • Boundary layer in an EHL contact
  • Thermal memory effect
  • <a href='./files/apercu_deroulant/pdf/12_EN.pdf'>Textured cylinder-liner surface</a>
  • <a href='./files/apercu_deroulant/pdf/10_EN.pdf'>Efficient multigrid FE solver</a>
  • Phonons in a nanocomposite with different elastic contrasts simulated by Finite Elements
  • Understanding the early detection of bearing defects in non-stationary conditions
  • Optimisation of the shape and position of the ribs of an aircraft wing loaded in bending at constant mass. Compliance reduced by 80%
  • Lipid structures of synovial fluid in healthy and arterial cases
  • Numerical prediction of flow through a spur gear (Marchesse et al. 2015)
  • Adhesive contact
  • Control of rotating machinery supported by Active Magnetic Bearings (AMB)
  • Load passage for a rough contact on a granular mass and illustration of the maximum shear stress
  • Finite element simulation of the ballooning of a Zircaloy-4 sheath under conditions simulating a LOCA. Several physics involved, including elasto-v...
  • Plane stresses in a part subjected to an explicit dynamic impact (source: Jean Di Stasio's Michelin CIFRE PhD)
  • Multiscale topological optimisation (PhD by T.Djourachkovitch)
  • Silent wheel: Identification and control
  • Study of losses in transmission belts
  • Elasto-Visco-Plastic Buckling of Thick Shell [Jacquet et al. 2021]
  • Bio-tribology for the prevention, diagnosis and early treatment of pathologies
  • Diagnostic and monitoring of rotating parts in vehicles
  • 2dof electromagnetic generator for railway applications
  • Multiscale topological optimisation (PhD by T.Djourachkovitch)
  • Nonlinear dynamics of on-board structure equipped with elastomer mounts
  • Validation of the hybrid modular model: Comparison of tooth pressure with an EF model for thin-walled gears (source: CIFRE Safran Helicopter Engine...
  • <a href='./files/apercu_deroulant/pdf/13_EN.pdf'>Pressure distribution between an oil control ring and a textured liner</a>
  • Explicit-implicit co-simulation (Zebulon / Europlexus)
  • Hybrid vibration control
  • Original electrical application architecture with strong electro-magnetic-mechanical coupling (© Leroy-Somer)
  • Flange roller-end contact: numerical (FEM) vs experimental (interferometry) values of the lubricant film thickness (Trybogyr)
  • Visco-elastic contact
  • Tribological study of a bolted interface subjected to vibration: micro-slip and micro-detachment measured by image correlation
  • Deformations of the vascular structure under the effect of inserted tools (M. Menut PhD)
  • Example of a multiparametric digital twin for welding (PhD by Y. LU, AREVA-SAFRAN-LAMCOS Chair)
  • Rotor demonstrator on PMA
  • Rotating machine on active magnetic bearings
  • 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)
  • Tactile perception
  • Equivalent stress field generated by a rolling contact on a heterogeneous viscoelastic mass
  • 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
  • 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
  • Vibration Control of AMB-Rotor System Under Base Motions Based on Disturbance Observer
    By : Zhang, Yue, Xu, Yuanping, Zhou, Jin, Zhou, Yang, Mahfoud, Jarir
    IEEE-ASME TRANSACTIONS ON MECHATRONICS - Published : MAY 2 2025
  • Video-based diagnosis of a rolling element bearing using a high-speed camera: Feedback on the Survishno 2023 conference contest
    By : Leclere, Quentin, Andre, Hugo, Antonia, Jerome, Burel, Arthur, Capdessus, Cecile, Cocconcelli, Marco, D'Elia, Gianluca, Daga, Alessandro Paolo, Dion, Jean-Luc, El Badaoui, Mohammed, El Hidali, Abdallah, Garibaldi, Luigi, Girardin, Francois, Griffaton, Julien, Gryllias, Konstantinos, Han, Yunhyeok, Helsen, Jan, Karkafi, Fadi, Kestel, Kayacan, Kordylas, Layla, Kunte, Deepti, Lo Feudo, Stefania, Marsick, Adrien, Marx, Douw, Mauricio, Alex Ricardo, Miranda-Fuentes, Johann, Peeters, Cedric, Poupon, T
    MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Published : MAY 1 2025
  • Fluid-structure-growth modeling in ascending aortic aneurysm: capability to reproduce a patient case
    By : Yan, Kexin, Ye, Wenfeng, Martinez, Antonio, Geronzi, Leonardo, Escrig, Pierre, Tomasi, Jacques, Rochette, Michel, Haigron, Pascal, Bel-Brunon, Aline
    BIOMECHANICS AND MODELING IN MECHANOBIOLOGY - Published : APR 2025
  • Study of load distribution and ellipse truncation for angular contact pitch bearings-blade assembly subjected to external loads
    By : Duquesne, Remy, Nelias, Daniel, Morterolle, Sebastien, Ancey-Rocchi, Stella
    TRIBOLOGY INTERNATIONAL - Published : APR 2025
  • Bio-inspiration from the Issus Nymph gear - strength analysis
    By : Guilbert, Berengere, Winger, Marie, Cavoret, Jerome, Sutton, Gregory, Johnston, Richard, Ville, Fabrice
    MECHANICS & INDUSTRY - Published : APR 4 2025

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