Nonlinear analysis of bioprosthetic heart valves under dynamic loading
Applied Mechanics and Materials, ISSN: 1660-9336, Vol: 152-154, Page: 732-736
2012
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Conference Paper Description
In order to investigate the effect of material nonlinearity on the dynamic behavior of bioprosthetic heart valve, we establish the spherical, cylindrical and ellipsoidal leaflets models with the material model of Mooney-Rivlin. The mechanical behavior of bioprosthetic valve leaflet during diastolic phase is analyzed. The finite element analysis results show that the stress distributions of the ellipsoidal and spherical valve leaflets are comparatively reasonable. The ellipsoidal and spherical valve leaflets have the following advantages over the cylindrical leaflet valve, lower peak von-Mises stress, smaller stress concentration area, and relatively uniform stress distribution. This work is very helpful to manufacture reasonable shaped valvular leaflets, thus to prolong the lifetime of the bioprosthetic heart valve. © (2012) Trans Tech Publications.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84857169028&origin=inward; http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.732; https://www.scientific.net/AMM.152-154.732; http://www.scientific.net/AMM.152-154.732; http://www.scientific.net/AMM.152-154.732.pdf; https://dx.doi.org/10.4028/www.scientific.net/amm.152-154.732
Trans Tech Publications, Ltd.
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