Publication detail
STRESS-STRAIN ANALYSIS OF SURGICAL CONNECTION BETWEEN TWO AORTIC PARTS WITH DIFFERENT GEOMETRY
RYŠAVÝ, P. LEBIŠ, R.
Czech title
STRESS-STRAIN ANALYSIS OF SURGICAL CONNECTION BETWEEN TWO AORTIC PARTS WITH DIFFERENT GEOMETRY
English title
STRESS-STRAIN ANALYSIS OF SURGICAL CONNECTION BETWEEN TWO AORTIC PARTS WITH DIFFERENT GEOMETRY
Type
conference paper
Language
en
Original abstract
The paper presents an example of stress-strain analysis in vascular anastomoses. A computational model (based on finite element system ANSYS) of surgical connection between two aortic parts with different geometric parameters is presented. The model supposed axisymmetric homogeneous isotropic incompressible non-linear elastic material behaviour. The model is loaded by inner pressure and axial stretch, both being in the normal physiologic range. The extreme stress values in the connection of both parts are compared with the extreme values in the intact aorta. The results of computational modelling enable us to evaluate the risk of the clinical complications related to mechanics (aneurysma initiation, leackage, wall rupture) by comparison of the stress increase caused by the individual types and geometries of anastomoses.
Czech abstract
The paper presents an example of stress-strain analysis in vascular anastomoses. A computational model (based on finite element system ANSYS) of surgical connection between two aortic parts with different geometric parameters is presented. The model supposed axisymmetric homogeneous isotropic incompressible non-linear elastic material behaviour. The model is loaded by inner pressure and axial stretch, both being in the normal physiologic range. The extreme stress values in the connection of both parts are compared with the extreme values in the intact aorta. The results of computational modelling enable us to evaluate the risk of the clinical complications related to mechanics (aneurysma initiation, leackage, wall rupture) by comparison of the stress increase caused by the individual types and geometries of anastomoses.
English abstract
The paper presents an example of stress-strain analysis in vascular anastomoses. A computational model (based on finite element system ANSYS) of surgical connection between two aortic parts with different geometric parameters is presented. The model supposed axisymmetric homogeneous isotropic incompressible non-linear elastic material behaviour. The model is loaded by inner pressure and axial stretch, both being in the normal physiologic range. The extreme stress values in the connection of both parts are compared with the extreme values in the intact aorta. The results of computational modelling enable us to evaluate the risk of the clinical complications related to mechanics (aneurysma initiation, leackage, wall rupture) by comparison of the stress increase caused by the individual types and geometries of anastomoses.
Keywords in English
Stress-strain analysis, artery, anastomosis
RIV year
2004
Released
10.05.2004
Location
Praha
ISBN
80-85918-88-9
Book
Engineering Mechanics 2004
Volume
2004
Pages count
2
BIBTEX
@inproceedings{BUT16780,
author="Pavel {Ryšavý} and Radek {Lebiš},
title="STRESS-STRAIN ANALYSIS OF SURGICAL CONNECTION BETWEEN TWO AORTIC PARTS WITH DIFFERENT GEOMETRY",
booktitle="Engineering Mechanics 2004",
year="2004",
volume="2004",
month="May",
address="Praha",
isbn="80-85918-88-9"
}