标题：Influence of Material Thickness to the Dynamic Mechanical Properties of Bioprosthetic Heart Valve
作者：Huang, Xu; Yuan, Quan; Cong, Hua; Ma, Haibo; Ye, Xin
作者机构：[Huang, Xu; Yuan, Quan; Ma, Haibo; Ye, Xin] Shandong Univ, Sch Mech Engn, Jinan 250061, Peoples R China.; [Cong, Hua] Shandong Univ, Sch Med, Jinan 更多
会议名称：International Conference on Computer-aided Material and Engineering (ICCME 2012)
会议日期：MAR 17-18, 2012
来源：PROGRESS IN NEW MATERIALS AND MECHANICS RESEARCH
关键词：finite element analysis; shape design; bioprosthetic heart valve; stress; distribution
摘要：The paper constructs a type of bioprosthetic valve leaflets' parametric model via computer aided design, which is a series of accurate parameters of the bioproshtetic heart valve, such as the radius of the sutural ring, height of the supporting stent and inclination of the supporting stent. And they are determined in this paper. Numerical simulation is used to determine the effect of the shape design on the mechanical performance of the bioprosthetic valve leaflet. The stress with a shape under the same load is analysed and the thickness of the leaflets 0.5mm and 0.6mm is compared. We creat a ellipsoidal surface 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 0.5mm is lower than that of others. This work is very helpful to manufacture reasonable shaped valvular leaflets and to prolong the lifetime of the bioprosthetic heart valve.