Publication detail

Analýza vlivu tvarových odchylek na kontaktních kuželových plochách kyčelní endoprotézy na napjatost a pravděpodobnost porušení keramické hlavice

FUIS, V.

Original Title

Analýza vlivu tvarových odchylek na kontaktních kuželových plochách kyčelní endoprotézy na napjatost a pravděpodobnost porušení keramické hlavice

English Title

Analýza vlivu tvarových odchylek na kontaktních kuželových plochách kyčelní endoprotézy na napjatost a pravděpodobnost porušení keramické hlavice

Type

conference paper

Language

Czech

Original Abstract

The paper deals with the problems of the stress and failure probability of the ceramic head of hip joint endoprosthesis. There are considered the macro and micro shape deflections of the contacted cone areas, the values are given from the 3D measured device IMS UMPIRE. The macro shape deflection is different conicity of the contacted parts, micro shape deflections are the local shape deflection which are added with the macro shape deflections. The problems of the stress and probability of failure are solved using computational modelling: stress states are calculated by FEM, failure probability is based on the Weibull weakest link theory. The failure probability of the ceramic head for the random position against the stem will be analysed in detail.

English abstract

The paper deals with the problems of the stress and failure probability of the ceramic head of hip joint endoprosthesis. There are considered the macro and micro shape deflections of the contacted cone areas, the values are given from the 3D measured device IMS UMPIRE. The macro shape deflection is different conicity of the contacted parts, micro shape deflections are the local shape deflection which are added with the macro shape deflections. The problems of the stress and probability of failure are solved using computational modelling: stress states are calculated by FEM, failure probability is based on the Weibull weakest link theory. The failure probability of the ceramic head for the random position against the stem will be analysed in detail.

Key words in English

computational modelling, shape deflection, hip joint endoprosthesis

Authors

FUIS, V.

RIV year

2005

Released

29. 3. 2005

Publisher

VUT, FSI ÚMTMB

Location

Brno

ISBN

80-214-2373-0

Book

Aplikovaná Mechanika 2005

Pages from

1

Pages to

7

Pages count

7

BibTex

@inproceedings{BUT15805,
  author="Vladimír {Fuis}",
  title="Analýza vlivu tvarových odchylek na kontaktních kuželových plochách kyčelní endoprotézy na napjatost a pravděpodobnost porušení keramické hlavice",
  booktitle="Aplikovaná Mechanika 2005",
  year="2005",
  pages="1--7",
  publisher="VUT, FSI ÚMTMB",
  address="Brno",
  isbn="80-214-2373-0"
}