Dynamic nanoindentation of articular porcine cartilage

被引：55

作者：

Franke, O. ^{[1
,3
]}

Goeken, M. ^{[3
]}

Meyers, M. A. ^{[2
]}

Durst, K. ^{[3
]}

Hodge, A. M. ^{[1
]}

机构：

[1] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA

[2] Univ Calif San Diego, Dept Mech & Aerosp Engn, San Diego, CA 92103 USA

[3] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, Erlangen, Germany

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2011年 / 31卷 / 04期

关键词：

Articular cartilage; Biological materials; Indentation; Time-dependent mechanical properties; Storage and loss modulus; Dynamic nanoindentation; ATOMIC-FORCE MICROSCOPY; FLAT-PUNCH INDENTATION; VISCOELASTIC PROPERTIES; INSTRUMENTED INDENTATION; MECHANICAL-PROPERTIES; REPAIR TISSUE; STIFFNESS; LOAD; SENSITIVITY; MODULUS;

D O I：

10.1016/j.msec.2010.12.005

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Articular cartilage is a poroelastic (biphasic) material with a complex deformation behavior, which can be considered elastic-viscoelastic. In this article, articular porcine cartilage is tested in vitro using dynamic nanoindentation and is analyzed using the frequency domain. The testing and data analysis are presented as a function of the strain rate and frequency, which allows for the results to be compared for various load amplitudes over the same frequency range. In addition, a new approach to correct the contact area during dynamic nanoindentation is presented and the effects of sample freezing on the mechanical properties are also discussed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：789 / 795

页数：7

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