Influence of collagen fibre orientation on the frictional properties of articular cartilage
Influence of collagen fibre orientation on the frictional properties of articular cartilage
复制标题
胶原纤维取向对关节软骨摩擦性能的影响
DOI：
10.1049/bsb2.12005
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发表时间：
2021
影响因子：
--
通讯作者：
Fujie Hiromichi
中科院分区：
文献类型：
--
作者：
Yarimitsu Seido;Ito Kei;Fujie Hiromichi
关节软骨具有独特的胶原纤维网络结构，其表现出各向异性和深度依赖性。胶原纤维在平行于关节软骨表面的横截面中的取向可能会影响关节软骨的润滑特性。通过有限元摩擦分析，研究了胶原纤维取向对关节软骨摩擦性能的影响。具体而言，使用三维纤维增强多孔弹性双相模型来确定胶原原纤维取向对关节软骨摩擦特性的影响。模拟结果表明，胶原纤维的取向有显着的影响，关节软骨的变形行为在前面和后面的接触面积。无论压头速度如何，平行于胶原纤维取向的方向上的动摩擦系数低于垂直于胶原纤维取向的方向上的动摩擦系数。
Articular cartilage has a unique collagen fibre network structure that exhibits both anisotropy and depth dependency. Collagen fibre orientation in a cross‐section parallel to the articular cartilage surface may affect the lubrication properties of articular cartilage. The effect of collagen fibre orientation on the frictional properties of articular cartilage was examined through finite element analysis of the friction. Specifically, a three‐dimensional fibre‐reinforced poroelastic biphasic model was used to determine the influence of collagen fibril orientation on the frictional properties of articular cartilage. The simulations reveal that collagen fibre orientation has a significant influence on the deformation behaviour of articular cartilage in front of and behind the contact area. The coefficient of dynamic friction was lower in the direction parallel to the collagen fibre orientation than in the direction perpendicular to the collagen fibre orientation, regardless of the indenter speed.