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| HAL : hal-00090974, version 1 |
| Fiche détaillée |  Récupérer au format |
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| 2005 APS Division of Fluid Dynamics - 58th Annual Meeting (DFD05), Chicago : États-Unis (2005) |
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| Aortic aneurysms : a mechanical instability ? |
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| Virginie Duclaux 1Christophe Clanet 1 |
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| (2005) |
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| 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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| 1 : | Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE) |
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CNRS : UMR6594 – Université de Provence - Aix-Marseille I – Université de la Méditerranée - Aix-Marseille II – Ecole Centrale de Marseille |
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| 2 : | Laboratoire Jean Alexandre Dieudonné (JAD) |
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CNRS : UMR6621 – Université Nice Sophia Antipolis [UNS] |
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| Domaine | : | Physique/Mécanique/Mécanique des fluides Sciences de l'ingénieur/Mécanique/Mécanique des fluides |
| hal-00090974, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00090974 | |
| oai:hal.archives-ouvertes.fr:hal-00090974 | |
| Contributeur : Judith Hannoun | |
| Soumis le : Lundi 4 Septembre 2006, 15:57:29 | |
| Dernière modification le : Mercredi 13 Septembre 2006, 10:53:01 | |
