Stress Analysis of the Ceramics Head with Micro and Macro Shape Deviations of the Contact Areas

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F08%3APU76965" target="_blank" >RIV/00216305:26210/08:PU76965 - isvavai.cz</a>
Alternative codes found
RIV/61388998:_____/08:00314962
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Stress Analysis of the Ceramics Head with Micro and Macro Shape Deviations of the Contact Areas
Original language description
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. There are assumed two material characteristics of the stem - the first is linear elastic and the second is bilinear plastic modelled austenitic steel used in the bio-implants. 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 - this concerns model shape inaccuracies such as deviation from the nominal degree of taper, at the micro-level - when the stochastic distribution of unevenness on the contact areas is respected. The problem of stress in ceramic heads was solved using the algorithm of the finite element method - system ANSYS under ISO 7206-5 loading. In the paper are presented and analysed the results of solution of the macro-level shape deviations and micro-level
Czech name
Napjatostní analýza keramické hlavice totální kycelní endorpotézy s mikro a makro tvaovými odchylkami
Czech description
Príspevek se zabývá vlivem materiálu dríku na napjatost v hlavici totální kycelní endoprotézy s mikro a makro tvarovými odchylkami.

Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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