Tensile Stress Analysis of the Ceramic Head Endoprosthesis with different Micro

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Tensile Stress Analysis of the Ceramic Head Endoprosthesis with different Micro

Popis výsledku v původním jazyce

The paper deals with the problems of ceramic head of hip joint endoprosthesis destructions in vivo, and with assessing the impact of shape deflections of conical surfaces on the tensile stress in the head. Concerned are shape deviations from the ideal conical surfaces of the stem and the head of the endoprosthesis. The shape deviations may be modelled at the macro-level (deviation from the nominal degree of taper), at the micro-level - when the stochastic distribution of unevenness on the contact areasis respected. The problem of stress in ceramic heads was solved using the finite element method ? system ANSYS under ISO 7206-5 loading. There are analysed two different groups of micro shape deviations. The first is three variants of the sizes of the measured micro shape deviations (measured,doubled and halved). The second group of the analysed shapes deviations contained modeled deviations with the linear transformation of the measured deviations along the cone depth.

Název v anglickém jazyce

Tensile Stress Analysis of the Ceramic Head Endoprosthesis with different Micro

Popis výsledku anglicky

The paper deals with the problems of ceramic head of hip joint endoprosthesis destructions in vivo, and with assessing the impact of shape deflections of conical surfaces on the tensile stress in the head. Concerned are shape deviations from the ideal conical surfaces of the stem and the head of the endoprosthesis. The shape deviations may be modelled at the macro-level (deviation from the nominal degree of taper), at the micro-level - when the stochastic distribution of unevenness on the contact areasis respected. The problem of stress in ceramic heads was solved using the finite element method ? system ANSYS under ISO 7206-5 loading. There are analysed two different groups of micro shape deviations. The first is three variants of the sizes of the measured micro shape deviations (measured,doubled and halved). The second group of the analysed shapes deviations contained modeled deviations with the linear transformation of the measured deviations along the cone depth.

Druh

D - Stať ve sborníku

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

XII Mediterranean Conference on Medical and Biological Engineering and Computing 2010

ISBN

978-3-642-13038-0

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

Springer

Místo vydání

Chalkidiki

Místo konání akce

Chalkidiki

Datum konání akce

27. 5. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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