| Issue |
MATEC Web Conf.
Volume 131, 2017
UTP-UMP Symposium on Energy Systems 2017 (SES 2017)
|
|
|---|---|---|
| Article Number | 04004 | |
| Number of page(s) | 6 | |
| Section | Economic, environmental, social and policy aspects of energy | |
| DOI | https://doi.org/10.1051/matecconf/201713104004 | |
| Published online | 25 October 2017 | |
Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
1 Mechanical Engineering Department, Universiti Teknologi PETRONAS,, 32610, Seri Iskandar, Malaysia.
2 Mechanical and Maintenance Engineering Department, School of Applied Technical Sciences, German Jordanian University,, 11180, Amman, Jordan.
3 Control and System Engineering Department, University of Technology, Baghdad, Iraq
* Corresponding author: mohammad.nasif@utp.edu.my
Flow induced structural stresses can cause mechanical prosthetic aortic valve to fail due to yielding. In this study, we have performed the structural analysis, especially the effect of leaflet thickness on equivalent stresses developed in a Bileaflet mechanical heart valve (BMHV) due to blood flow through it has been investigated. The leaflet thickness varies from 0.5mm to 0.7mm, by 0.1mm. A fluid-structure interaction approach based on Arbitrary Lagrangian Eulerian (ALE) technique has been employed with the aid of an user defined function (UDF). Results of the analysis show that high von Mises stresses are developed in BMHV with leaflet thickness of 0.5mm and 0.6mm, being 75% and 13% higher than allowable equivalent stress respectively. Such thinner leaflets are therefore, not sustainable to be replaced with diseased aortic valve.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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