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Title: 3D finite element dynamic analysis of interface stress at residual limb of a trans-tibial amputee
Other Titles: 小腿截肢患者残端应力的三维有限元动态分析
Authors: Jia, XH
Zhang, M 
Wang, RC
Jin, DW
Keywords: Prosthetic socket
Interface stress
Finite element analysis
Dynamic loads
Issue Date: 2004
Publisher: 中国学术期刊(光盘版)电子杂志社
Source: 中国康复医学杂志 (Chinese journal of rehabilitation medicine), 2004, v. 19, no. 5, p. 334-336 How to cite?
Journal: 中国康复医学杂志 (Chinese journal of rehabilitation medicine) 
Abstract: 目的:研究接受腔/残肢界面应力分布特征,为假肢优化设计提供基础.
Objective:A quantitative understanding of the interface stress distribution between prosthetic socket and residual limb is fundamental for an optimal design of artificical limb.
Method: The geometry of residual limb and prosthesis was obtained based on MR images, a 3D nonlinear finite element(FE)model was developed.The interface stresses were compared between walking and standing state, and the effect of dynamic loads of interface stress was investigated.
Result:Interface stress was mainly distributed at patella tendon,lateral tibia,media tibia and popliteal pit regions,and the average peak interface pressure during walking was 1.15 times as the one with single-leg standing,and the shear stress was 1.4 times.
Conclusion:Interface stress between the residual limb and prosthetic socket increases due to the dynamic loads.The dynamic effects during walking can′t be ignored.
ISSN: 1001-1242
Rights: © 2004 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。
© 2004 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research use.
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