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Communication Dans Un Congrès Année : 2005

Aortic aneurysms : a mechanical instability ?

Résumé

We study experimentally a system composed of an elastic membrane in which water is periodically flushed from a heart-like pump. Our first interest is the occurrence of waves as opposed to an homogeneous mode of deformation of our membrane. These modes may explain differences in the localization of aneurysms in the body. Then we show the case of an inhomogeneous membrane (in terms of Young's modulus) submitted to our flow. In a certain range of parameters, our fake artery is able to gradually develop a swollen region that we call aneurysm, and whose cause is mechanical.
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Dates et versions

hal-00090974 , version 1 (04-09-2006)

Identifiants

  • HAL Id : hal-00090974 , version 1

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Virginie Duclaux, Christophe Clanet, François Gallaire. Aortic aneurysms : a mechanical instability ?. 2005 APS Division of Fluid Dynamics - 58th Annual Meeting (DFD05), 2005, Chicago, United States. ⟨hal-00090974⟩
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