Fracture analysis of cortical bone under the condition of cement line debonding and osteon pullout
Fracture analysis of cortical bone under the condition of cement line debonding and osteon pullout
复制标题
骨水泥线脱粘及骨块拔出情况下皮质骨骨折分析
DOI：
10.1142/s1793524518500237
复制
发表时间：
2017-11
影响因子：
2.2
通讯作者：
Li Xing
中科院分区：
文献类型：
--
作者：
Chen Yaogeng;Wang Wenshuai;Li Xing
皮质骨是由骨单位镶嵌在骨间质中构成，骨单位与骨间质之间存在一层薄薄的无定形界面，称为骨水泥线。由于疲劳和循环载荷的作用，骨组织和间质骨经常发生拔出或脱粘现象。本研究的目的是建立一个纤维增强复合材料松质骨脱粘模型，其中假设沿骨单位，水泥线和间质组织骨的结合条件是不完善的。本文采用复变函数方法，得到了含径向裂纹的骨单位、骨水泥线和骨间质组织中应力场的级数表达式。通过计算微裂纹尖端附近的应力强度因子（SIF），研究了骨单元和骨水泥线的材料特性、裂纹位置和不同程度的脱粘对断裂行为的影响。调查结果表明，水泥线是控制水泥土侵蚀的重要措施。
Cortical bone consists of osteons embedded in interstitial bone tissue and there is a thin amorphous interface, named cement line, between osteon and interstitial bone. Due to fatigue and cyclic loading, the pullout or debonding phenomenon often occurs in osteonal and interstitial tissue bone. The study aims to construct a fiber-reinforced composite material debonding model for cortical bone, in which the bonding condition along the osteon, cement line and interstitial tissue bone are assumed to be imperfect. In the study, we used the complex variable method to obtain series representations for stress fields in the osteon, cement line and the interstitial tissue bone with a radial crack. The effects of material properties of osteon and cement line, crack position, and varying degrees of debonding on the fracture behavior were investigated by computing the stress intensity factor (SIF) in the vicinity of the microcrack tips. The investigation results indicated that the cement line was important for control...
登录
查看更多内容
影响因子：
1.6
作者：
D. Yi;Z. Xiao;J. Zhuang;I. Sridhar
通讯作者：
D. Yi;Z. Xiao;J. Zhuang;I. Sridhar
影响因子：
9.7
作者：
Ebacher, Vincent;Guy, Pierre;Wang, Rizhi
通讯作者：
Wang, Rizhi
影响因子：
2.4
作者：
BURR, DB;SCHAFFLER, MB;FREDERICKSON, RG
通讯作者：
FREDERICKSON, RG
DOI：
10.1115/1.4003754
发表时间：
2011-07
期刊：
Journal of Applied Mechanics
影响因子：
--
作者：
Susan Mischinski;A. Ural
通讯作者：
Susan Mischinski;A. Ural
影响因子：
4.5
作者：
Peter Zioupos;J. Currey
通讯作者：
Peter Zioupos;J. Currey