6 岁儿童下肢长骨有限元模型验证及参数研究

doi:10.3969/j.issn.0258-8021. 2013. 06.015

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摘要研究在动态载荷下6岁儿童下肢长骨的损伤极限。分别对股骨、胫骨的有限元模型进行动态三点弯曲仿真试验，并通过有限元模型仿真试验与尸体试验结果的对比，探究相关参数对6岁儿童下肢长骨骨折的影响。仿真试验所得冲击块的撞击力位移曲线走势与尸体试验的结果基本吻合，验证了该模型的有效性。股骨和胫骨失效时的撞击力分别为2.52和1.96 kN，位移分别为11.88和23.49 mm。与成人相比，儿童骨骼的弹性模量略低，并且骨骼韧性较好，使得撞击时发生骨折的风险相对降低。本研究为儿童下肢损伤机理及防护措施的研究提供了科学的基础数据。

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	李海岩^*李蓓崔世海贺丽娟吕文乐

关键词 ： 6岁儿童, 下肢, 长骨, 损伤极限, 有限元分析

Key words： 6-year-old child lower limb long bone failure tolerance finite element analysis

基金资助:美国福特公司研究计划；天津市应用基础及前沿技术研究计划项目（10JCYBJC25900）

引用本文:

李海岩^*李蓓崔世海贺丽娟吕文乐. 6 岁儿童下肢长骨有限元模型验证及参数研究[J]. 中国生物医学工程学报, 2013, 32(6): 752-756.
LI Hai Yan* LI Bei CUI Shi Hai HE Li Juan LV Wen Le
. Validation and Parameter Study of a Finite Element Model of 6-Year-Old Child′s Lower Extremity Long Bone. journal1, 2013, 32(6): 752-756.

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http://cjbme.csbme.org/CN/10.3969/j.issn.0258-8021. 2013. 06.015 或 http://cjbme.csbme.org/CN/Y2013/V32/I6/752

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