Nanoindentation of trabecular bone - comparison with uniaxial testing of single trabecula

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F11%3A00185594" target="_blank" >RIV/68407700:21110/11:00185594 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378297:_____/11:00361139

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Nanoindentation of trabecular bone - comparison with uniaxial testing of single trabecula

Popis výsledku v původním jazyce

The published mechanical properties of human trabecular bone vary between 1GPa and 15GPa. The cause of this broad discrepancy in results might be in sample preparation, different testing protocols or anisotropy and asymmetry of the micro-samples. 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 was developed for high precision loading control. The strains at the surface of the sample are measured using a high-resolution CCD camera. The strain field is evaluated by precise DIC algorithm applied to whole surface of the loaded sample. The mechanical properties measured on micrometer-sized specimens using both methods (nanoindentation and micro-mechanical testing) are prescribed to FE model. 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.

Název v anglickém jazyce

Nanoindentation of trabecular bone - comparison with uniaxial testing of single trabecula

Popis výsledku anglicky

The published mechanical properties of human trabecular bone vary between 1GPa and 15GPa. The cause of this broad discrepancy in results might be in sample preparation, different testing protocols or anisotropy and asymmetry of the micro-samples. 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 was developed for high precision loading control. The strains at the surface of the sample are measured using a high-resolution CCD camera. The strain field is evaluated by precise DIC algorithm applied to whole surface of the loaded sample. The mechanical properties measured on micrometer-sized specimens using both methods (nanoindentation and micro-mechanical testing) are prescribed to FE model. 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GAP105%2F10%2F2305" target="_blank" >GAP105/10/2305: Morfometrické a mechanické vlastnosti trabekulární kosti zjištěné pomocí metod mikromechaniky a numerického modelování</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemické listy

ISSN

0009-2770

e-ISSN

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Svazek periodika

105

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

668-671

Kód UT WoS článku

000297278200005

EID výsledku v databázi Scopus

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