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Nanoindentation of trabecular bone - comparison with uniaxial testing of single trabecula
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SYSNO ASEP 0361139 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nanoindentation of trabecular bone - comparison with uniaxial testing of single trabecula Author(s) Jiroušek, Ondřej (UTAM-F) RID, SAI
Němeček, J. (CZ)
Kytýř, Daniel (UTAM-F) SAI, RID, ORCID
Kunecký, Jiří (UTAM-F) RID, SAI, ORCID
Zlámal, Petr (UTAM-F) RID, SAI, ORCID
Doktor, Tomáš (UTAM-F) RID, SAI, ORCIDNumber of authors 6 Source Title Chemické listy. - : Česká společnost chemická - ISSN 0009-2770
Roč. 105, č. 17 (2011), s. 668-671Number of pages 4 s. Publication form on line www - on line www Language eng - English Country CZ - Czech Republic Keywords constitutive modelling ; micromechanics ; nanoindentation ; trabecular bone Subject RIV JJ - Other Materials R&D Projects GAP105/10/2305 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20710524 - UTAM-F (2005-2011) UT WOS 000297278200005 EID SCOPUS 80052453841 Annotation The article deals with a comparison between the properties assessed using nanoindentation and properties measured using uniaxial testing of single trabeculae. A novel experimental device has been developed which enables to measure single trabeculae in tension and compression with high precision. The strains at the surface of the sample are measured optically using a high-resolution CCD camera. The strain field is evaluated with very precise image correlation algorithm applied to whole surface of the loaded sample. The mechanical properties measured on micrometersized specimens using both methods (nanoindentation and micro-mechanical testing) are then prescribed to FE model of the trabecula sample. The sample is then loaded according to the experimental procedure. The response of the FE model (stress-strain curve) is compared to results from the tensile test. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2012
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