ANISOTROPIC POROELASTIC HOLLOW CYLINDERS WITH DAMAGED PERIPHERY UNDER HARMONIC AXIAL LOADING: RELEVANCE TO BONE REMODELLING
ANISOTROPIC POROELASTIC HOLLOW CYLINDERS WITH DAMAGED PERIPHERY UNDER HARMONIC AXIAL LOADING: RELEVANCE TO BONE REMODELLING
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DOI：
10.1163/157361109789017005
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发表时间：
2009-01-01
影响因子：
2
通讯作者：
Naili, S.
中科院分区：
文献类型：
--
作者：
Nguyen, V. -H.;Lemaire, T.;Naili, S.
提出了一种空心多孔圆柱体在谐波轴向载荷作用下的各向异性模型来模拟骨皮质结构元件骨元的体内行为。除了可能存在的裂缝外，介质的周边表面应该是不透水的。采用基于Biot孔隙弹性理论的解析法和有限元法进行了数值试验。数值研究了微裂纹对流体流动的影响。研究结果表明，周围裂缝的存在直接改变了骨的机械敏感网络的刺激。因此，本研究试图提出一种可能的机制，通过这种机制，骨骼可以感知周围机械环境的变化。
An anisotropic modelling of hollow porous cylinders under harmonic axial loading is proposed to simulate the in vivo behavior of structural elements of cortical bone called osteons. The peripheral surface of the medium is supposed to be impermeable, except on possible existing cracks. Numerical tests are performed by analytical and finite element methods based on the Biot poroelastic theory. The influence of microcracks on the fluid flow is numerically investigated. The findings show that the existence of peripheral cracks directly modifies the stimulation of the mechano-sensitive network of the bone. Thus, this study attempts to propose a likely mechanism by which bone can sense changes of the surrounding mechanical environment.