Stress and reliability analyses of the hip joint endoprosthesis ceramic head with measured manufacturing inaccuracies

• Autorzy: Fuis V.
• Konferencja: Applied Mechanics 2003, Gliwice, Polska
• Języki publikacji: PL

Abstrakty

EN

The paper presents the results of the computational modelling of the stress and reliability of the ceramic head of the total hip joint endoprosthesis under ISO 7206-5 loading. Endoprosthesis consists of the two fmain parts - ceramic head and the steel stem. The joint of these two parts is realised by the self-locking cone and the manufacturing inaceuracies of these cones significantly influence the tensile stresses in the head and head's failure probability. The manufacturing inaceuracies were measured on 3D measuring devrce, stress in the analysed system is calculated using FEM system ANSYS and the head's reliability calculation is based in the Weibull weakest link theory.

Słowa kluczowe

EN

hip joint endoprosthesis; ceramic head; manufacturing inaccuracies

• Wydawca: Wydawnictwo Katedry Mechaniki Stosowanej
• Czasopismo: Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
• Rocznik: 2003
• Tom: nr 21
• Strony: 51--56
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Fuis V.

• Centre of Mechatronics-Institute of Thermomechanics of Sciences CR and Institute of Solid Bodies, Brno University of Technology, 601 90 Brno, Antonínská 548/1 tel. [phone]

Bibliografia

• [1] Fuis V., Janiček P.: Stress and Reliability Analyses of Ceramic Femoral heads with Axisymmetric Production Inaccuracies. Proc. IFMBE ISSN 1680-0737. MEDICON 2001 - IX Mediterranean Conference on Medical and Biological Engineering and Computing, Part l. pp. 632-635, Croatia.2001.
• [2] Fuis V., Hlavoň P.: Experiences with the Measuring of the Manufacturing Inaccuracies of the Hip Joint Endoprosthesis Stem and the Head Contact Areas. Proc. Conference Engineering Mechanics 2002, pp. 59-60, Svratka (in Czech), 2002.
• [3] Fuis V.: Stress and Reliability Analyses of the Hip Joint Endoprosthesis Ceramic Head Scientific record of Brno University of Technology, edition PhD Thesis, Vol. 34, Brno (in Czech), 2000.
• [4] Bush, D.: Designing ceramic components for structural applications. Journal of Materials Engineering and Performance, ASM Int., 2, pp- 851-862, 1993.