人体桡骨支架力学模型及承载性能  

MECHANICAL MODEL FOR RADIUS SCAFFOLD AND ITS LOAD CAPACITY

作　　者：高永毅[1] 龚兰云[1] 张厚安[2] 张翠娟[1] 

机构地区：[1]湖南科技大学先进材料制备与应用技术研究所,湖南湘潭411201 [2]厦门理工学院机械工程系,福建厦门361024

出　　处：《力学与实践》2010年第2期95-99,共5页Mechanics in Engineering

基　　金：国家自然科学基金项目(50775070);湖南省科技计划项目(2008FJ3037);湖南省教育厅重点项目(06A018)资助

摘　　要：针对人体骨组织三维网状孔洞分布特点,得到了一种建立人体骨支架力学模型的方法.利用该方法获得了人体桡骨力学模型,导出了桡骨黏弹性本构模型.通过对桡骨力学模型的承载性能分析,得出:当桡骨受到单向轴向压力时,最大应力出现在通孔孔壁上,且应力与应变的关系是非线性的.Based on the distribution of the three-dimensional holes in human bones,we propose a method to establish the mechanical model for human radius scaffold.Mechanical model of human radius is established in this paper by this method,together with a viscoelastic constitutive model.According to mechanical properties of the mechanical model,we reach the following conclusions：when given a uniaxial pressure,the maximum stress appears in the hole wall,and the relationship between stress and strain is non-linear.

关 键 词：骨支架 人体桡骨 力学模型 力学性能 

分 类 号：Q811.6[生物学—生物工程]