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Publication detail
RYŠAVÝ, P.
Original Title
STRESS-STRAIN ANALYSIS OF SURGICAL CONNECTION OF ARTERIES
Type
conference paper
Language
English
Original Abstract
A computational model of surgical connection of two identical parts of arteries is presented in the paper as an example of stress-strain analysis of vascular anastomoses realized using finite element method. The axisymmetric model assumes hommogeneous isotropic incompressible non-linear elastic material behaviour. The model is loaded by inner pressure and by axial prestretch in the range of normal physiologic values. In addition, it uses a fictive temperature field method to take residual stresses in the arterial wall into account. The extreme stress values in the connection of both parts are compared with compared to the stress components in the intact aorta. Allthough the model is rather simplified, it enables us to evaluate the risk of clinical complications related to mechanics (aneurysma initiation, leackage, wall rupture) by comparison of the stress increase in the individual types and geometries of anastomoses.
Key words in English
stress-strain analysis, arterial wall, pseudoelasticity, vascular graft
Authors
RIV year
2003
Released
12. 5. 2003
Publisher
Association fo Engineering Mechanics
Location
Svratka, CZ
ISBN
80-86246-18-3
Book
Engineering Mechanics 2003
Pages from
302
Pages to
303
Pages count
2
BibTex
@inproceedings{BUT13501, author="Pavel {Ryšavý}", title="STRESS-STRAIN ANALYSIS OF SURGICAL CONNECTION OF ARTERIES", booktitle="Engineering Mechanics 2003", year="2003", pages="2", publisher="Association fo Engineering Mechanics", address="Svratka, CZ", isbn="80-86246-18-3" }