Publication detail
STRESS AND RELIABILITY ANALYSES OF CERAMIC FEMORAL HEADS WITH AXISYMMETRIC PRODUCTION INACCURACIES.
FUIS, V. JANÍČEK, P.
English title
STRESS AND RELIABILITY ANALYSES OF CERAMIC FEMORAL HEADS WITH AXISYMMETRIC PRODUCTION INACCURACIES.
Type
conference paper
Language
en
Original abstract
The paper contains the results of the stress and reliability analyses of the ceramic head of the total hip joint endoprosthesis under testing conditions in accordance with the norm ISO 7206-5. The axisymmetric production inaccuracies of the contact taper of the head and the stem are considered. The head stresses are obtained from the computational methods (finite elements) and the head reliability is based on the Weibull weakest link theory. The effects of the production inaccuracies on the head’s hoop stress and the head’s contact pressure along the contact taper are analyzed in detail, because the maximum tensile stress is located in this region. Finally, the effect of the aforementioned production inaccuracies on the head’s failure probability during the loading is shown.
English abstract
The paper contains the results of the stress and reliability analyses of the ceramic head of the total hip joint endoprosthesis under testing conditions in accordance with the norm ISO 7206-5. The axisymmetric production inaccuracies of the contact taper of the head and the stem are considered. The head stresses are obtained from the computational methods (finite elements) and the head reliability is based on the Weibull weakest link theory. The effects of the production inaccuracies on the head’s hoop stress and the head’s contact pressure along the contact taper are analyzed in detail, because the maximum tensile stress is located in this region. Finally, the effect of the aforementioned production inaccuracies on the head’s failure probability during the loading is shown.
Keywords in English
hip joint endoprosthesis, production inaccuracy, ceramic head
RIV year
2001
Released
12.06.2001
Publisher
Faculty of Electrical Engineering, Zagreb, Croatia
Location
Pula, Croatia
ISBN
953-184-024-5
Book
IFMBE Proceedings - Medicon 2001 IX Mediterranean Conference on Medical and Biological Engineering and Computing
Pages count
4
BIBTEX
@inproceedings{BUT2914,
author="Vladimír {Fuis} and Přemysl {Janíček},
title="STRESS AND RELIABILITY ANALYSES OF CERAMIC FEMORAL HEADS WITH AXISYMMETRIC PRODUCTION INACCURACIES.",
booktitle="IFMBE Proceedings - Medicon 2001 IX Mediterranean Conference on Medical and Biological Engineering and Computing",
year="2001",
month="June",
publisher="Faculty of Electrical Engineering, Zagreb, Croatia",
address="Pula, Croatia",
isbn="953-184-024-5"
}