Detail publikace

Computational Modelling of the Biomechanical Systems Properties

Originální název

Computational Modelling of the Biomechanical Systems Properties

Anglický název

Computational Modelling of the Biomechanical Systems Properties

Jazyk

en

Originální abstrakt

The part of the project is aimed at determining the dependencies of the abrasion on the mechanical properties of the total endoprosthesis (TEP), or of the mechanical properties and their behaviour in contact with TEP. The size of abrasion for the given type of the endoprosthesis can be determined by means of experiments only. Mechanical quantities describing the features of the contact between two bodies (process of contact pressure, size of contact area) can be determined effectively only by calculation that enables generalization of the obtained results and thanks to that it raises their importance for the clinical practice. Therefore the computational modelling of the contact pressure distribution at a physiological hip joint and its comparison with the case, when the surface or total artificial joint was used, was implemented in 2006. Possible shape deviations in the connection between head and acetabulum were considered with the total endoprosthesis. Material characteristics used for modelling of the acetabulum with the use of ultra high molecular weight polyethylene (UHMWPE) were assumed as linearly elastic ones, defined by the modulus of elasticity and the Poisson ratio. The question remains whether a computational model with a linearly elastic model of polyethylene can be applied in all cases when solving the tension and deformation in the hip joint. Thus, experiments have been planned with a set of samples to determine the material characteristics that will then be used in the computational model of the hip joint endoprosthesis.

Anglický abstrakt

The part of the project is aimed at determining the dependencies of the abrasion on the mechanical properties of the total endoprosthesis (TEP), or of the mechanical properties and their behaviour in contact with TEP. The size of abrasion for the given type of the endoprosthesis can be determined by means of experiments only. Mechanical quantities describing the features of the contact between two bodies (process of contact pressure, size of contact area) can be determined effectively only by calculation that enables generalization of the obtained results and thanks to that it raises their importance for the clinical practice. Therefore the computational modelling of the contact pressure distribution at a physiological hip joint and its comparison with the case, when the surface or total artificial joint was used, was implemented in 2006. Possible shape deviations in the connection between head and acetabulum were considered with the total endoprosthesis. Material characteristics used for modelling of the acetabulum with the use of ultra high molecular weight polyethylene (UHMWPE) were assumed as linearly elastic ones, defined by the modulus of elasticity and the Poisson ratio. The question remains whether a computational model with a linearly elastic model of polyethylene can be applied in all cases when solving the tension and deformation in the hip joint. Thus, experiments have been planned with a set of samples to determine the material characteristics that will then be used in the computational model of the hip joint endoprosthesis.

BibTex


@inbook{BUT55714,
  author="Zdeněk {Florian} and Vladimír {Fuis} and Tomáš {Návrat}",
  title="Computational Modelling of the Biomechanical Systems Properties",
  annote="The part of the project is aimed at determining the dependencies of the abrasion on the mechanical properties of the total endoprosthesis (TEP), or of the
mechanical properties and their behaviour in contact with TEP. The size of abrasion for the given type of the endoprosthesis can be determined by means of experiments only. Mechanical quantities describing the features of the contact between two bodies (process of contact pressure, size of contact area) can be determined effectively only by calculation that enables generalization of the obtained results and thanks to that it raises their importance for the clinical practice. Therefore the computational modelling of the contact pressure distribution at a physiological hip joint and its comparison with the case, when the surface or total artificial joint was used, was implemented in 2006. Possible shape deviations in the connection between head and acetabulum were considered with the total endoprosthesis. Material characteristics used for modelling of the acetabulum with the use of ultra high molecular weight polyethylene (UHMWPE) were assumed as linearly elastic ones, defined by the modulus of elasticity and the Poisson ratio. The question remains whether a computational model with a linearly elastic model of polyethylene can be applied in all cases when solving the tension and deformation in the hip joint. Thus, experiments have been planned with a set of samples to determine the material characteristics that will then be used in the computational model of the hip joint endoprosthesis.",
  address="VUT v Brně",
  booktitle="Simulation Modelling of Mechatronic Systems II",
  chapter="55714",
  edition="mechatronika",
  institution="VUT v Brně",
  year="2007",
  month="december",
  pages="243--254",
  publisher="VUT v Brně",
  type="book chapter"
}