Guilhem MOLLON
guilhem.mollon@insa-lyon.fr
Associate Professor
National Institute for Applied Sciences of Lyon
PhD, Civil Engineering, INSA Lyon
HDR, INSA Lyon
Guilhem MOLLON
guilhem.mollon@insa-lyon.fr
Associate Professor
National Institute for Applied Sciences of Lyon
PhD, Civil Engineering, INSA Lyon
HDR, INSA Lyon
Joint diseases represent a growing challenge both from a public health and a financial point of vue, and they can be largely regarded as a tribology problem. In this work, we pay attention to the numerical modelling of the articular bio-lubrication by the synovial fluid, this fluid being considered as a collection of deformable lipidic vesicles that interact by contact. This modelling is coupled with an experimental campaign of mechanical and biochemichal characterization.
Figure 1. Principles of the dialog between experiments and simulations.
Figure 2. Synovial vesicles.
Figure 5. Modelling of the collective behavior of a collection of vesicles in the interface, by a multibody meshfree approach.
Figure 3. Initial state of a simulation of AFM indentation of a vesicle glued on a substrate.
Figure 4. Velocity and stress fields in the indented vesicle.
Figure 6. Wear profiles measured on prostetic heads taken from a walk simulator.