Stress Analysis of the Biopresthetic Heart Valve with Different Thickness

Quan Yuan; Hai Bo Ma; Tian Qi Liu; Hai Yan Zhu; Cheng Rui Zhang

doi:10.4028/www.scientific.net/AMR.466-467.1256

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 466-467Stress Analysis of the Biopresthetic Heart Valve...

Stress Analysis of the Biopresthetic Heart Valve with Different Thickness

Abstract:

The stress with different shapes under the same load is analysed and the thickness of the leaflets 0.2mm and 0.4mm is compared by us. We creat the spherical, paraboloidal and ellipsoidal curved surfaces in accordance with geometrical features. The experimental results of the finite element analysis show that stress distribution of the same bioprosthetic heart valve leaflets with different thickness is different. The maximal primary stress with the thickness of 0.4mm is lower than the others.With the same thickness,the stress of the ellipsoidal valve leaflets is lower. This work is very helpful to manufacture reasonable shaped valvular leaflets and to prolong the lifetime of the bioprosthetic heart valve.

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Periodical:

Advanced Materials Research (Volumes 466-467)

Pages:

1256-1260

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.466-467.1256

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Online since:

February 2012

Authors:

Quan Yuan, Hai Bo Ma, Tian Qi Liu, Hai Yan Zhu, Cheng Rui Zhang

Keywords:

Bioprosthetic Heart Valve Leaflets, Finite Element Analysis (FEA), Stress Distribution

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