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Finite elasticity modelling of vascular prostheses mechanics

Published online by Cambridge University Press:  15 September 1999

M. Zidi ,
M. Cheref  and
C. Oddou
M. Zidi*
Affiliation:
Laboratoire de Mécanique Physique, Université Paris XII Val de Marne (UPRES-A du CNRS 7052), 94010 Créteil, France
M. Cheref
Affiliation:
Laboratoire de Mécanique Physique, Université Paris XII Val de Marne (UPRES-A du CNRS 7052), 94010 Créteil, France
C. Oddou
Affiliation:
Laboratoire de Mécanique Physique, Université Paris XII Val de Marne (UPRES-A du CNRS 7052), 94010 Créteil, France
*
zidi@univ-paris12.fr
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Abstract

In this paper, a mathematical model of the mechanical behaviour of prosthetic blood vascular structures is analysed when taking into account effects of finite deformations, residual stresses which can be induced by fabrication processes and the composite nature of the material constituting those structures. The case of particular applied strains, viewed as arising during surgical manipulation and implying axial and circular shear stresses, is also studied. The resulting distribution of stresses within the wall shows large gradients which can be reduced when the effects of adequate pre-existing initial stresses are present.

Keywords

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Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 7 , Issue 3 , September 1999 , pp. 271 - 275
Copyright
© EDP Sciences, 1999

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References

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