Numerical-experimental method for the validation of a controlled stiffness femoral prosthesis |
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Authors: | Simões J A Monteiro J Vaz M A |
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Affiliation: | Department of Mechanical Engineering, University of Aveiro, Portugal. |
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Abstract: | The aim of this paper is to describe a new numerical-experimental method to determine the stiffness of a conceptual proximal femoral prototype. The methodology consists of the comparison of the numerical and experimental displacement distributions of the prosthesis loaded as a cantilever beam to validate a design concept: controlled stiffness prosthesis. The manufactured prototype used to test the applicability of the numerical-experimental procedure integrates a stiff metal core bonded to a composite material made of an epoxy resin reinforced with carbon-glass braided pre-forms. The prosthesis with an embedded controlled stiffness concept was obtained by varying the geometry of the core with the composite layer thickness. |
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