An evolution of pulse speed in arteries |
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Authors: | Hilmi Demiray |
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Institution: | (1) Research Institute for Basic Sciences, Department of Mathematics, Marmara Research Centre, P.O. Box 21, Gebze-Kocaeli, Turkey;(2) Present address: Faculty of Sciences and Letters, Department of Engineering Sciences, Istanbul Technical University, Maslak 80626, Istanbul, Turkey |
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Abstract: | In this work, treating the artery as a thick-walled cylindrical shell made of an incompressible, isotropic and elastic solid,
utilizing the large deformation theory and the stress-strain relation proposed by Demiray (1976b,Trans. ASME Ser. E, J. Appl. Mech.,98, 194–197), an explicit expression for the pulse speed is obtained and the effect of lumen pressure and the axial stretch
on wave speed is discussed. Numerical results indicate that the wave speed increases with lumen pressure but decreases with
the axial stretch. The results of the present model are compared with our previous work (Demiray, 1988,J. Biomech.
21, 55–58) on the same subject. |
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