正常双腿站立位股骨上段应力分布的三维有限元分析

Three-dimensional finite element analysis on stress distribution of proximal femur under normal double legs standing position

目的 用三维有限元方法分析双腿站立位时正常人体股骨上段的应力分布 ,验证该部位应力与结构的对应关系。方法 在建立股骨上段三维有限元模型的基础上 ,确定边界条件 ,加载负荷 ,用三维有限元分析软件计算并图示股骨上段应力分布。结果 股骨上段应力分布结果合理 ,验证了结构与功能的对应关系。结论 三维有限元分析方法是一种简便实用的生物力学研究方法 ,可作为实验生物力学研究的验证和补充方法。

Objective To analyze stress distribution of proximal femur under normal double legs standing position with three dimensional finite element analysis so as to verify the correspondent relationship between stress and structure in the position. Methods After building three dimensional finite element model of the proximal femur of normal person, border condition was determined and add loads, then calculate and illustrate stress distribution of proximal femur by using the software of three dimensional finite element analysis. Results It was found that the stress distribution of the proximal femur is reasonable and the correspondent relationship between stress and structure is verified as expected. Conclusion Three dimensional finite element analysis is a kind of convenient and practicable method to be used as the confirmation and supplement of experimental biomechanics study of human being.