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力学与实践 ›› 2010, Vol. 32 ›› Issue (2): 95-99.doi: 10.6052/1000-0879-2009-095

• 应用研究 • 上一篇    下一篇

人体桡骨支架力学模型及承载性能

高永毅 龚兰云 张厚安 张翠娟   

  1. 湖南科技大学 湖南科技大学 湖南科技大学 湖南科技大学
  • 收稿日期:2009-04-29 修回日期:2009-07-07 出版日期:2010-04-08 发布日期:2010-04-08

MECHANICAL MODEL FOR RADIUS SCAFFOLD AND ITS LOAD CAPACITY

  • Received:2009-04-29 Revised:2009-07-07 Online:2010-04-08 Published:2010-04-08

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.

关键词: 骨支架, 人体桡骨, 力学模型, 力学性能

Abstract: 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.

Key words: Scaffold, Human radial, Mechanical model, Mechanical properties