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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Elastic properties of microstructural components of human bone tissue as measured by nanoindentation.
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Elastic properties of microstructural components of human bone tissue as measured by nanoindentation.

机译:通过纳米压痕测量的人骨组织的微结构组件的弹性特性。

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The elastic properties of several microstructural components of dry human vertebrae (T-12 and L-1) and tibiae have been investigated in the longitudinal and transverse directions using nanoindentation. The largest Young's modulus was that for the interstitial lamellae in the longitudinal direction (25.7 +/- 1.7 GPa). This was followed in decreasing order by osteons in the longitudinal direction (22.4 +/- 1.2 GPa), trabeculae in the longitudinal direction (19.4 +/- 2.3 GPa), an average over osteons and interstitial lamellae in the transverse direction [16.6 +/- 1.1 GPa (it was difficult to microstructurally distinguish osteons from interstitial lamellae in the transverse direction)], and trabeculae in the transverse direction (15.0 +/- 2.5 GPa). An ANOVA statistical analysis revealed that the values all are significantly different (p < 0.05). Since the elastic moduli in the longitudinal direction are all greater than in the transverse, measurable elastic anisotropies exist in the components. The hardnesses also varied among the microstructural components in the range 0.52-0.74 GPa. Copyright 1999 John Wiley & Sons, Inc.
机译:使用纳米压痕技术已经研究了干燥的人椎骨(T-12和L-1)和胫骨的几种微结构组件的弹性特性。最大的杨氏模量是沿纵向方向的间质薄片的杨氏模量(25.7 +/- 1.7 GPa)。随后依次为:纵向骨(22.4 +/- 1.2 GPa),小梁骨(19.4 +/- 2.3 GPa),骨平均和间质薄片横向[16.6 + / -1.1 GPa(很难在横向上通过显微结构区分骨质和间质薄片)和横向上的小梁(15.0 +/- 2.5 GPa)。方差分析的统计数据表明,所有值均存在显着差异(p <0.05)。由于纵向的弹性模量均大于横向的模量,因此部件中存在可测量的弹性各向异性。显微组织成分之间的硬度也在0.52-0.74 GPa范围内变化。版权所有1999 John Wiley&Sons,Inc.

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