Experimental measurement of three-dimensional continuum-level strain fields in trabecular bone.
Experimental measurement of three-dimensional continuum-level strain fields in trabecular bone.
复制标题
小梁中三维连续体水平应变场的实验测量。
DOI：
10.1007/978-1-4615-0651-5_18
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发表时间：
2001
影响因子：
--
通讯作者：
Bay,BK
中科院分区：
文献类型：
--
作者：
Bay,BK
骨小梁能力评估的困难反映了组织本身的复杂性。它是一种高度多孔的硬质泡沫1，2，由微小结构元件的不均匀和各向异性组件组成，通常为支柱（小梁）或板的形式。每个结构元件又由复杂排列的材料层组成，材料层被细胞陷窝和小管的密集网络渗透。Lambertes由具有额外复杂性的材料组成;矿物（羟基磷灰石）的微小颗粒紧密地散布在有机纤维（胶原蛋白）的织物中。从力学的角度来看，这种复杂性表现为一组独特的材料特性：3，4相对较高的强度重量比，相对较低的刚度强度比，以及令人惊讶的损伤容限程度。
Difficulties in the assessment of trabecular bone competence reflect complexities of the tissue itself. It is a highly porous rigid foam1,2composed of an inhomogeneous and anisotropic assembly of minute structural elements, generally in the form of struts (trabeculae) or plates. Each structural element is in turn composed of a complex arrangement of material lamellae infiltrated by a dense network of cellular lacunae and canaliculi. Lamellae are composed of material with additional complexity; minute grains of mineral (hydroxyapatite) tightly interspersed within a fabric of organic fibers (collagen). From the perspective of mechanics, this complexity manifests as a unique set of material characteristics:3,4relatively high strength to weight ratio, relatively low stiffness to strength ratio, and a surprising degree of damage tolerance.