Reliability of the Ceramic Head of the Total Hip Joint Endoprosthesis Using Weibull’s Weakest-link Theory

0044148 - ÚT 2007 RIV KR eng C - Conference Paper (international conference)
Fuis, Vladimír - Návrat, Tomáš - Hlavoň, Pavel - Janíček, P.
Reliability of the Ceramic Head of the Total Hip Joint Endoprosthesis Using Weibull’s Weakest-link Theory.
[Spolehlivost keramické hlavice totální kyčelní endoporotézy určená pomocí Weibullovy teorie nejslabšího článku.]
World Congress on Medical Physics and Biomedical engineering 2006. Seoul: Springer, 2006 - (Kim, S.; Suh, T.), s. 1-4. IFMBE proceedings. ISBN 3-540-36839-6. ISSN 1727-1983.
[World Congress on Medical Physics and Biomedical engineering 2006. Seoul (KR), 27.08.2006-01.09.2006]
R&D Projects: GA ČR(CZ) GP101/04/P037
Institutional research plan: CEZ:AV0Z20760514
Keywords : hip joint ceramics head * material parameters * Weibull weakest link theory * destructions
Subject RIV: BO - Biophysics

The paper deals with calculation of the parameters of ceramic material from a set of destruction tests of ceramic heads of total hip joint endoprosthesis. The standard way of calculation of the material parameters consists in carrying out a set of 3 or 4 point bending tests of specimens cut out from parts of the ceramic material to be analysed. In case of ceramic heads, it is not possible to cut out specimens of required dimensions because the heads are too small (if the cut out specimens were smaller than the normalised ones, the material parameters derived from them would exhibit higher strength values than those which the given ceramic material really has). On that score, a special testing jig was made, in which 40 heads were destructed.

Příspěvek se zabývá určením materiálových parametrů keramiky pomocí destrukčních zkoušek keramických hlavic totální kyčelní endoprotézy a jejího následného stochastického zpracování.
Permanent Link: http://hdl.handle.net/11104/0137001