Detail publikace

Stress and Reliability Analyses of Ceramic Femoral Heads with 3D Manufacturing Inaccuracies

FUIS, V.

Originální název

Stress and Reliability Analyses of Ceramic Femoral Heads with 3D Manufacturing Inaccuracies

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

At present, the problems of reliability of ceramic femoral heads for hip joint endoprosthesis are topical, as in a not negligible number of patients their destruction in vivo had taken place. Therefore stress and reliability analyses of the ceramic heads were made using computational modelling aimed at finding the causes of the head destruction. The deformation and stresses are obtained by computational methods under testing conditions, in accordance with ISO 7206-5. Head reliability is based on the Weibull weakest link theory. The head's stress and reliability are significantly influenced by manufacturing inaccuracies of the cone contact areas. The considered manufacturing inaccuracies are modelled as axisymmetric or 3D. The effects of manufacturing inaccuracies on the head's hoop stresses along the contact taper are analysed in detail. Finally, the effect of the mentioned manufacturing inaccuracies on the head's failure probability during the loading is shown.

Klíčová slova v angličtině

Hip joint endoprosthesis, Ceramic head, Weibull theory, Manufacturing cone inaccuracies

Autoři

FUIS, V.

Rok RIV

2004

Vydáno

1. 4. 2004

Nakladatel

IFToMM, China Machine Press

Místo

Tianjin, China

ISBN

7-111-14073-7

Kniha

The eleventh world congress in mechanism and machine science

Strany od

2197

Strany do

2201

Strany počet

5

BibTex

@inproceedings{BUT11749,
  author="Vladimír {Fuis}",
  title="Stress and Reliability Analyses of Ceramic Femoral Heads with 3D Manufacturing Inaccuracies",
  booktitle="The eleventh world congress in mechanism and machine science",
  year="2004",
  pages="2197--2201",
  publisher="IFToMM, China Machine Press",
  address="Tianjin, China",
  isbn="7-111-14073-7"
}