Publication detail

STRESS AND STRAIN ANALYSES OF THE HIP JOINT ENDOPROSTHESIS CERAMIC HEAD WITH THE SHAPE DEFLECTIONS OF THE CONTACT CONES

FAJFR, M. FUIS, V.

Czech title

Napjatostní a deformační analýza keramické hlavice totální kyčelní endoprotézy s tvarovými odchylkami kontaktních ploch

English title

STRESS AND STRAIN ANALYSES OF THE HIP JOINT ENDOPROSTHESIS CERAMIC HEAD WITH THE SHAPE DEFLECTIONS OF THE CONTACT CONES

Type

conference paper

Language

en

Original abstract

The problem of the stress in the head of the hip joint endoprosthesis is solved by FEM. These shape variants of the contact areas were taken into account: accurate variant, deviation from the nominal conicalness, no roundness contact surfaces (modelling by the help of elliptically shaped), indirectness of contact surfaces, combination of no roundness and conicalness. The maximum of the first principal stress in the ceramic head decreases with the increasing of the angle of the loading. Deflections of the type no roundness create the highest values of maximum stresses in the head.

Czech abstract

Příspěvek se zabýva problematikou vlivu tvarových odchylek na napjatost v keramické hlavici totální kyčelní endoprotézy. Na kontaktní ploše mezi hlavicí a dříkem jsou uvažovány následující tvarové odchylky – různá kuželovitost, nekruhovitost a nepřímost.

English abstract

The problem of the stress in the head of the hip joint endoprosthesis is solved by FEM. These shape variants of the contact areas were taken into account: accurate variant, deviation from the nominal conicalness, no roundness contact surfaces (modelling by the help of elliptically shaped), indirectness of contact surfaces, combination of no roundness and conicalness. The maximum of the first principal stress in the ceramic head decreases with the increasing of the angle of the loading. Deflections of the type no roundness create the highest values of maximum stresses in the head.

Keywords in English

Hip joint endoprosthesis, off-centre loading, macro shape deflections

RIV year

2006

Released

13.11.2006

Publisher

Brno University of Technology

Location

Hrotovice

ISBN

80-214-3232-2

Book

HUMAN BIOMECHANICS 2006

Pages count

2

BIBTEX


@inproceedings{BUT24100,
  author="Martin {Fajfr} and Vladimír {Fuis},
  title="STRESS AND STRAIN ANALYSES OF THE HIP JOINT ENDOPROSTHESIS CERAMIC HEAD WITH THE SHAPE DEFLECTIONS OF THE CONTACT CONES",
  booktitle="HUMAN BIOMECHANICS 2006",
  year="2006",
  month="November",
  publisher="Brno University of Technology",
  address="Hrotovice",
  isbn="80-214-3232-2"
}