THREE-DIMENSIONAL SHAPE OPTIMIZATION OF FEMORAL COMPONENT OF HIP PROSTHESES WITH NONLINEAR FRICTIONAL INTERFACE

Autor:	Dwight T. Davy, Hamid Katoozian
Rok vydání:	2004
Předmět:	Materials science business.industry Femoral geometry Relative motion Biomedical Engineering Structural engineering Finite element method Nonlinear system Three dimensional shape Design objective Shape optimization Femoral component business Biomedical engineering
Zdroj:	Journal of Mechanics in Medicine and Biology. :161-172
ISSN:	1793-6810 0219-5194
DOI:	10.1142/s0219519404000941
Popis:	A numerical procedure was implemented for the three-dimensional shape optimization of femoral component of total hip replacements. An algorithm was developed for defining the component geometry in terms of longitudinal and cross-sectional shape variables. The three-dimensional design model was combined with a non-linear 3-D finite element analysis and a numerical optimization procedure. An idealized femoral geometry and a frictional contact were used for bone-implant interfaces. The design objective was to reduce the shear stresses and the relative motion between implant and the surrounding bone along the interface region. The general trend in all design optimization was to produce a somewhat bulky implant with a more rectangular cross section. The outcome was more strongly affected by interface condition than choice of objective function.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a849d674104009cc5e34e68cc38be7d4 https://doi.org/10.1142/s0219519404000941 Zobrazit plný text záznamu