标题：Stress Analysis of the Biopresthetic Heart Valve with Different Thickness
作者：Yuan, Quan; Ma, Haibo; Liu, Tianqi; Zhu, Haiyan; Zhang, Chengrui
作者机构：[Yuan, Quan; Ma, Haibo; Zhu, Haiyan; Zhang, Chengrui] Shandong Univ, Sch Mech Engn, Jinan 250061, Peoples R China.; [Liu, Tianqi] Qianfoshan Hosp Sh 更多
会议名称：1st International Conference on Intelligent System and Applied Material (GSAM 2012)
会议日期：JAN 13-15, 2012
来源：INTELLIGENT SYSTEM AND APPLIED MATERIAL, PTS 1 AND 2
关键词：bioprosthetic heart valve leaflets; the finite element analysis; stress; distribution
摘要：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.