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Article Dans Une Revue Computer Methods in Applied Mechanics and Engineering Année : 2009

Fluid-structure interaction and multi-body contact. Application to aortic valves

Résumé

In this article we present a partitioned procedure for fluid-structure interaction problems in which contacts among different deformable bodies can occur. A typical situation is the movement of a thin valve (e.g. the aortic valve) immersed in an incompressible viscous fluid (e.g. the blood). In the proposed strategy the fluid and structure solvers are considered as independent black-boxes that exchanges forces and displacements; the structure solvers are moreover not supposed to manage contact by themselves. The hypothesis of non-penetration among solid objects defines a non-convex optimization problem. To solve the latter, we use an internal approximation algorithm that is able to directly manage the cases of thin structures and self-contacts. A numerical simulation on an idealized aortic valve is finally realized with the aim of illustrating the proposed scheme.

Dates et versions

inria-00542238 , version 1 (02-12-2010)

Identifiants

Citer

Matteo Astorino, Jean-Frédéric Gerbeau, Olivier Pantz, Karim-Frédéric Traore. Fluid-structure interaction and multi-body contact. Application to aortic valves. Computer Methods in Applied Mechanics and Engineering, 2009, 198 (45-46), pp.3603-3612. ⟨10.1016/j.cma.2008.09.012⟩. ⟨inria-00542238⟩
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