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抗应力遮挡内固定钢板的有限元分析

Hits: 2087 Download times: 1490 Received:November 05, 1999

作者	Author	单位	Unit	E-Mail
王志彬	WANG Zhi bin	天津市中西医结合骨科研究所,天津300211	Orthopaedic Institute of Integrated Traditional Chinese and Western Medicine Tianjing,300211
李林安	LI Lin an	天津大学,天津
辛景义	XIN Jing yi	天津市中西医结合骨科研究所,天津300211	Orthopaedic Institute of Integrated Traditional Chinese and Western Medicine Tianjing,300211
师宜健		天津市中西医结合骨科研究所,天津300211	Orthopaedic Institute of Integrated Traditional Chinese and Western Medicine Tianjing,300211
邢晖		天津市中西医结合骨科研究所,天津300211	Orthopaedic Institute of Integrated Traditional Chinese and Western Medicine Tianjing,300211

期刊信息：《中国骨伤》2000年13卷，第6期，第329-330页

DOI：doi:10.3969/j.issn.1003-0034.yyyy.nn.zzz

目的：三维有限元法(FEM)适于内固定钢板和其改为中心外凸形状进行应力和变形分析。

方法：有限元分析中采用了1223个节点、764个八节点六面体等参元和3564个自由度。

结果：改进后的内固定钢板比原来的内固定钢板在正向力、弯矩My和Mz的作用下,柔度分别增加了6.01%、30.8%、6.12%.

结论：改进后的钢板刚度和应力替代作用被降低,符合生物力学。

[关键词]:三维有限元内固定钢板生物力学

Finite elemental analysis on the anti-stress shielding effect of the internal fixation plate

Abstract:

Objective:Three dimensional finite element method(FEM) is suitable for the analysis of the stress and deformation of the internal fixation plate and its modified type of the centrally convex shape.

Methods: 1223 nodes,764 8 node hexahedron isoparametric elements and 3564 freedom degrees were used in FEM analysis.

Results:In comparison with the original steel plate,the flexibility of the improved steel plate under the action of normal tensible load,y direction and z direction bending moment increased 60 1%,30 8% and 61 2% respectively.

Conclusion: Both the rigidity and the role of stress shielding decrease.The data demonstrates that this improved steel plate meets the demand of biomechanics.

KEYWORDS:Finite element method Internal fixation steel plate Biomechanics

引用本文，请按以下格式著录参考文献：

中文格式:	王志彬,李林安,辛景义,师宜健,邢晖.抗应力遮挡内固定钢板的有限元分析[J].中国骨伤,2000,13(6):329~330
英文格式:	WANG Zhi bin,LI Lin an,XIN Jing yi.Finite elemental analysis on the anti-stress shielding effect of the internal fixation plate[J].zhongguo gu shang / China J Orthop Trauma ,2000,13(6):329~330

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