ESPCI web site
Séminaire Café (Interne)
Il s’agit d’un exposé assez court (20 min) et assez informel.
Prière aux conférencier·ère·s de ne jamais dépasser 30 min et de vérifier la compatibilité avec le projecteur avant le séminaire.
Les séminaires ont lieu les jeudis après la réunion du laboratoire qui débute à 13h30 dans la bibliothèque du labo sur le campus Jussieu, Barre Cassan, Bât A, 1er étage.
Pour suggérer un titre et envoyer un abstract, contacter 
et 
.
Coffee seminars are supposed to be short and informal presentations (20 min).
Please never last longer than 30 min and check the compatibility of the projector with your computer before the seminar.
Location : Campus Jussieu, Barre Cassan, Bât A, 1er étage
7 quai Saint Bernard
75005 Paris
To suggest a title or send an abstract, please contact and
| Juillet - Août | Pas de séminaire café pendant l’été ☼ |
| 3 Septembre | Giulia Merlini - CERMICS (ENPC) Waveguide model for shear wave elastography of the cornea This work addresses the mathematical modelling of elastic wave propagation within the cornea. The underlying application is the detection through shear wave elastographic measurements of pathologies associated to changes in the biomechanical properties of the cornea, such as glaucoma and keratoconus. Supported by experimental evidence of guided wave propagation in ex-vivo cornea, we model the tissue as an incompressible homogeneous elastic plate with finite thickness. Under plane strain and harmonic plane wave assumptions, the problem becomes one-dimensional over the finite thickness of the plate. We derive a well posed variational formulation for incompressible guided waves. Computing dispersion curves and modal profiles leads to a non-linear eigenvalue problem, whose mass and stiffness matrices can be computed explicitly with Legendre polynomials. A key feature of this framework is that fluid–structure interaction at the posterior surface can be easily incorporated, modelling the fluid as acoustic and purely incompressible, with transmission conditions at the boundary. Numerical results show that the presence of the fluid strongly affects the modal profiles through the thickness and decreases the propagation speed of the first modes, especially at high-frequency. Finally, anisotropy is introduced to account for the layered collagen microstructure of the cornea. Results are consistent with numerical simulations of a 3D anisotropic model of the cornea entailed with a complex description of collagen structure, providing physical interpretation and insights of simulations. |
| 10 Septembre | Eugene Rhee - Brown University |
| 17 Septembre | Philippe Agard - ISTeP Projet Péniche |
| 24 Septembre | Emanuel Bertrand - ESPCI & SPHERE |
