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Stress analysis in ceramic head of the hip joint endoprosthesis under oblique load
Fuis, Vladimír
Problem of the stress in the ceramic head of hip joint endoprosthesis pressed on the stem under oblique loading is solved in this paper. Oblique loading simulated the physiologi-cal conditions in vivo. The axis-symmetric production inaccuracies (deflection of nominal degree of taper) of the head - stem conical joint are considered. Computational modelling is realized by FEM - system ANSYS.
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Analysis of real production inaccuracies on the contact cone joint of head and stem
Fuis, Vladimír
Ceramic head reliability evaluation is significantly influenced by the factors that can allow increasing of the ten-sile stress in analysed body. Previous study eventuates that the production inaccuracies of contact cone joint of the head and the stem can significantly increase the tensile stress and decrease the reliability of whole implant. Paper deals with the problem of measuring real cone shape deflections on the different measuring devices.
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