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Study of the Osmosis Phenomenon to Predict the Stiffness of the Arterial Wall




Author(s)

Jeanne Sandrine Mabekou Takam¹, Jean Romaric Tsafack Nzifack¹, Medar Fogue² and Pierre Kisito Talla¹

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DOI:10.17265/2161-6221/2020.3-4.003

1. Unité de Recherche de Mécanique et de Modélisation des Systèmes Physiques (UR2MSP), Université de Dschang, Dschang 237, Cameroun
2. Unité de Recherche d’ingénierie des systèmes industriels et de l’Environnement (LISIE), IUT Fotso Victor de Bandjoun, Bandjoun 237, Cameroun

In the present work we describe a new expression of total stress taking into account the passive and active contributions but especially the pore level stress. Special attention is paid to the effective stress and osmotic pressure gradient in numerical simulation to understand the mechanical behavior of the human arterial wall. The new model aims to predict the rigidity of the artery, by using the theoretical model of hyper-elastic, anisotropic and dynamical behavior of human common carotid artery. The principal obtained result showed that: the osmosis phenomenon is the best parameter to explain the loss water in arterial tissue. This loss of water causes the rigidity of the artery which thus can be controlled by the osmosis phenomenon. All the results are in good agreement with the expected results of the literature and could play the important role in the diagnosis of the patients with the CVD (Cardiovascular Disease).

Hyper-elastic, anisotropic, effective stress, osmosis phenomenon.