Publication detail

Influence of the Measured Contact Cone Shape Deflections of the Hip Joint Endoprosthesis on the Stress and Reliability Values

FUIS, V., HLAVOŇ, P.

Original Title

Influence of the Measured Contact Cone Shape Deflections of the Hip Joint Endoprosthesis on the Stress and Reliability Values

English Title

Influence of the Measured Contact Cone Shape Deflections of the Hip Joint Endoprosthesis on the Stress and Reliability Values

Type

conference paper

Language

en

Original Abstract

The paper presents the results of the computational modelling of the stress states in the ceramic head of the hip joint endoprosthesis. The analysed system is loaded according the ISO 7206-5, the connection between the head and the stem is realised by the self-adhesive cone joint. 3D shape deflections of the mentioned cone areas are considered in the analysed systems. The values of the shape deflections were obtained from the measure device IMS UMPIRE (deflections from the roundness in each measured point of the cone areas and the global shape deflection – conicity of the cone). These measured values were implemented to FEM model. The stress and reliability analyses follow. The values of maximum tensile stresses in the head and head’s fracture probability curves create dispersion for random head putting on the stem cone.

English abstract

The paper presents the results of the computational modelling of the stress states in the ceramic head of the hip joint endoprosthesis. The analysed system is loaded according the ISO 7206-5, the connection between the head and the stem is realised by the self-adhesive cone joint. 3D shape deflections of the mentioned cone areas are considered in the analysed systems. The values of the shape deflections were obtained from the measure device IMS UMPIRE (deflections from the roundness in each measured point of the cone areas and the global shape deflection – conicity of the cone). These measured values were implemented to FEM model. The stress and reliability analyses follow. The values of maximum tensile stresses in the head and head’s fracture probability curves create dispersion for random head putting on the stem cone.

RIV year

2003

Released

12.05.2003

Publisher

Institute of Theoretical and Applied Mechanics AS CR Prague

Location

Svratka

ISBN

80-86246-18-3

Book

Engineering mechanics 2003

Pages from

92

Pages to

93

Pages count

2

Documents

BibTex


@inproceedings{BUT8181,
  author="Vladimír {Fuis} and Pavel {Hlavoň}",
  title="Influence of the Measured Contact Cone Shape Deflections of the Hip Joint Endoprosthesis on the Stress and Reliability Values",
  annote="The paper presents the results of the computational modelling of the stress states in the ceramic head of the hip joint endoprosthesis. The analysed system is loaded according the ISO 7206-5, the connection between the head and the stem is realised by the self-adhesive cone joint. 3D shape deflections of the mentioned cone areas are considered in the analysed systems. The values of the shape deflections were obtained from the measure device IMS UMPIRE (deflections from the roundness in each measured point of the cone areas and the global shape deflection – conicity of the cone). These measured values were implemented to FEM model. The stress and reliability analyses follow. The values of maximum tensile stresses in the head and head’s fracture probability curves create dispersion for random head putting on the stem cone.",
  address="Institute of Theoretical and Applied Mechanics AS CR Prague",
  booktitle="Engineering mechanics 2003",
  chapter="8181",
  institution="Institute of Theoretical and Applied Mechanics AS CR Prague",
  year="2003",
  month="may",
  pages="92",
  publisher="Institute of Theoretical and Applied Mechanics AS CR Prague",
  type="conference paper"
}