[1]曲传咏,秦庆华.多场耦合载荷下的骨重建行为模拟[J].智能系统学报,2007,2(03):52-58.
 QU Chuan-yong,QIN Qing-hua.Bone remodeling under multifield coupled loading[J].CAAI Transactions on Intelligent Systems,2007,2(03):52-58.
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多场耦合载荷下的骨重建行为模拟(/HTML)
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《智能系统学报》[ISSN:1673-4785/CN:23-1538/TP]

卷:
第2卷
期数:
2007年03期
页码:
52-58
栏目:
学术论文—智能系统
出版日期:
2007-06-25

文章信息/Info

Title:
Bone remodeling under multifield coupled loading
文章编号:
1673-4785(2007)03-0052-07
作者:
曲传咏秦庆华
天津大学机械工程学院,天津300072
Author(s):
QU Chuan-yongQIN Qing-hua
School of Mechanical Engineering, Tianjin University, Tianjin 300072, C hina
关键词:
骨重建多场智能材料生物材料
Keywords:
bone remodeling multifield intelligent materials biomaterials
分类号:
R318.01,Q64
文献标志码:
A
摘要:
在适应性弹性理论的基础上,建立了关于多场耦合作用下骨的适应性重建行为的数学模型,用来研究骨组织的智能化重建问题.给出了压电骨质材料在受到轴向和径向力、电载荷和磁载荷作用下智能化重建的控制方程,分别用来分析骨组织的内部重建和表面重建问题.采用基于状态空间法得到的半解析解来分析复杂的非均匀骨质材料.并且首次将骨的内部重建和表面重建联合起来考虑,从而可以更好的模拟骨的重建行为. 给出了不同载荷下,骨的智能化重建行为的具体算例,并且分析了径向压力、电场和磁场对骨的重建行为的影响.结果表明,电磁场等外界载荷对骨的重建行为有着显著的影响,这些效应可以被利用来更好地控制骨的重建行为.
Abstract:
The bone remodeling process is investigated theoretically and experime ntally within the framework of extended adaptive elasticity. Coupling between in ternal and surface remodeling is considered to better simulate the bone remodeli ng process. The interactions of multifield loading, including transverse press u re, electrical fields, and magnetic fields, are taken into account when simulati ng bone remodeling. A semianalytical solution based on the statespace method w as used to analyze the remodeling process of inhomogeneous bone materials subjec ted to multifield loading. Numerical examples are presented to verify the prop o sed theoretical model for coupled internal and surface bone remodeling under mec hanical and electromagnetic loading. The results are in contrast to former work which did not consider coupling between internal and surface remodeling. The mag nitude of electrical field changes is found to be lower and the remodeling time is significantly shorter. This implies that the coupling between internal and su rface remodeling plays an important role in the bone remodeling process. On the other hand, the results show that environmental loading can change the structure and properties of bone tissues.

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备注/Memo

备注/Memo:
收稿日期:2006-10-18.
基金项目:国家自然科学基金资助项目(10472082)
作者简介:
曲传咏,男,1980年生,博士研究生,主要研究方向为生物力学.
 E-mail:qu_chuanyong@hotmail.com.
秦庆华,男,1958年生,教授,博士生导师,长江学者,主要研究方向为智能生物材料力学、计算力学,主持各类课题9项,其中获省部级奖项2项,发表论文120余篇,其中被SCI/EI/ ISTP收录70余篇.E-mail:qhqin@tju.edu.cn.
更新日期/Last Update: 2009-05-07