Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing

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...

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Main Authors: Abbas, S.S., Shakir Nasif, M., Meor Said, M.A., Al-Waked, R., Khalefa Kadhim, S.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19982 /
Published: EDP Sciences 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033236161&doi=10.1051%2fmatecconf%2f201713104004&partnerID=40&md5=1226c05636d104beb5885798ddd8d081
http://eprints.utp.edu.my/19982/
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spelling utp-eprints.199822018-04-22T14:30:53Z Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing Abbas, S.S. Shakir Nasif, M. Meor Said, M.A. Al-Waked, R. Khalefa Kadhim, S. 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. EDP Sciences 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033236161&doi=10.1051%2fmatecconf%2f201713104004&partnerID=40&md5=1226c05636d104beb5885798ddd8d081 Abbas, S.S. and Shakir Nasif, M. and Meor Said, M.A. and Al-Waked, R. and Khalefa Kadhim, S. (2017) Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing. MATEC Web of Conferences, 131 . http://eprints.utp.edu.my/19982/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description 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.
format Article
author Abbas, S.S.
Shakir Nasif, M.
Meor Said, M.A.
Al-Waked, R.
Khalefa Kadhim, S.
spellingShingle Abbas, S.S.
Shakir Nasif, M.
Meor Said, M.A.
Al-Waked, R.
Khalefa Kadhim, S.
Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
author_sort Abbas, S.S.
title Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
title_short Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
title_full Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
title_fullStr Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
title_full_unstemmed Numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
title_sort numerical investigation on effect of leaflet thickness on structural stresses developed in a bileaflet mechanical heart valve for its sustainable manufacturing
publisher EDP Sciences
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033236161&doi=10.1051%2fmatecconf%2f201713104004&partnerID=40&md5=1226c05636d104beb5885798ddd8d081
http://eprints.utp.edu.my/19982/
_version_ 1741196296362917888
score 11.62408

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