Original scientific paper Experimental and numerical research of mechanical behaviour of hip replacement implant is presented. Experimental analysis was based on standard methods for testing mechanical properties and application of Digital Image Correlation (DIC) technique, while the Finite Element Method (FEM) was used for numerical simulation. A hip prosthesis extracted from a patient after revision surgery was used as the specimen. An adapter for the implant testing was constructed to enable the condition of a proximally loosened stem. During FEM analysis, a solid model was made of the assembly. An analysis of presented results indicated good agreement of experimental and numerical research.
Keywords: biomedical implant; digital image correlation; finite element method; Ti-6Al-4V alloy
Eksperimentalno i numeričko istraživanje mehaničkog ponašanja umjetnog kuka od legure titanaIzvorni znanstveni članak U ovom radu prikazano je eksperimentalno i numeričko istraživanje mehaničkog ponašanja umjetnog kuka od legure titana. Eksperimentalno istraživanje je bazirano na standardnim metodama ispitivanja mehaničkih svojstava i na primjeni tehnike digitalne korelacije slike, dok je metoda konačnih elemenata (MKE) primijenjena u numeričkim simulacijama. Umjetni kuk je izvađen iz pacijenta prilikom revizijske operacije kako bi se iskoristio kao uzorak za ispitvanja. Konstruiran je adapter za ispitivanje takvog uzorka kajo bi se dobili uvjeti što sličniji realnim. Za MKE analizu napravljen je model cijelog ispitivanog sklopa. Dobiveni rezultati ukazuju na dobru sukladnost eksperimentalnog i numeričkog istraživanja.Ključne riječi: digitalna korelacija slike; metoda konačnih elemenata; umjetni kuk
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