• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part H. Journal of Engineering in Medicine >Development of a customized density-modulus relationship for use in subject-specific finite element models of the ulna
【24h】

Development of a customized density-modulus relationship for use in subject-specific finite element models of the ulna

机译：定制尺骨密度模量关系的开发，用于尺骨特定对象的有限元模型

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Assigning an appropriate density-modulus relationship is an important factor when applying inhomogeneous material properties to finite element models of bone. The purpose of this study was to develop a customized density-modulus equation for the distal ulna, using beam theory combined with experimental results. Five custom equations of the form E = aρ~b were used to apply material properties to models of eight ulnae. All equations passed through a point (1.85, E_c), where ρ= 1.85 g/cm~3 represents the average density of cortical bone. For custom equations (1) to (3), E_c was predicted using beam theory, and the value of b was varied within the range reported in the literature. Custom equations (4) and (5) used other values of E_c from the literature, while keeping b constant. Results obtained from the custom equations were compared with those from other equations in the literature, and with experimental results. The beam theory analysis predicted E_c = 21 ± 1.6 GPa, and the three custom equations using this value tended to have the lowest errors. The power of the equations did not affect the results as much as the value used for E_c. Overall, a customized density-modulus relationship for the ulna was generated, which provided improved results over using previously reported density-modulus equations.
机译：将不均匀的材料特性应用于骨骼的有限元模型时，分配适当的密度-模量关系是重要的因素。这项研究的目的是结合束理论和实验结果，为尺骨远端开发定制的密度模量方程。五个形式为E =aρ〜b的自定义方程式将材料属性应用于八个尺骨的模型。所有方程都经过一个点（1.85，E_c），其中ρ= 1.85 g / cm〜3表示皮质骨的平均密度。对于自定义方程式（1）至（3），使用射束理论预测E_c，并且b的值在文献报道的范围内变化。自定义方程式（4）和（5）使用了文献中E_c的其他值，同时保持b不变。从自定义方程获得的结果与文献中其他方程获得的结果以及实验结果进行了比较。波束理论分析预测E_c = 21±1.6 GPa，使用该值的三个自定义方程式的误差往往最小。方程的功效对结果的影响不如对E_c的影响大。总的来说，生成了尺骨的定制密度-模量关系，与使用先前报道的密度-模量方程式相比，提供了改进的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号