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Accueil du site > Évènements > Séminaires > Séminaires IRPHE > Archives IRPHE > 2016

Vendredi 18 Mars 2016 / IRPHE

publié le , mis à jour le

Séminaire régulier IRPHE

Dynamics of fluid-driven bending, wrinkling and fracturing

Orateur : Jerome Neufeld
Department of Earth Sciences - Department of Applied Mathematics and Theoretical Physics - University of Cambridge

Résumé : Fluid-driven delamination or fracturing occurs in a host of materials with applications to the damage of biological tissues, the deformation of engineered materials and the fracture and deformation of the Earth’s crust. In direct analogy with the physical and mathematical complexities faced at the contact line of a spreading capillary drop, bending and in-plane tension within the sheet play particularly crucial roles near the delaminating tip of an elastic blister. This talk will examine the role of fluid flow in driving elastic deformation in systems with a thin, pre-existing fluid layer, and where adhesion at the fracture tip plays a key role. We’ll also examine how, at very much larger scales, a coupling between the elastic bending of the cold, subducting lithosphere can interact with the viscous deformation of more ductile crust, for example in Tibet. In these disparate settings the roles of fluid flow and elastic deformation will be highlighted.

Date et lieu  : le Vendredi 18 Mars 2016 à 14h00, salle de séminaire IRPHE