Title: Finite element analysis for knee implants with suitable material combinations

Authors: Bhaskar Kumar Madeti; Chalamalasetti Srinivasa Rao

Addresses: Department of Mechanical Engineering, Gayatri Vidya Parishad College of Engineering (A), Visakhapatnam, India ' Department of Mechanical Engineering, AU College of Engineering, Andhra University, Visakhapatnam, India

Abstract: Implants are compared with suitable material combinations. UHMWPE material is used for interface component and TZP is used for tibia plateau component (lower component) and intercondylar groove (upper component) in knee joint. The finite element analysis is performed for the knee implant for 600 N and for knee implant components for 600 N and 1,000 N body weights are considered. This study reveals the fact in case of any misalignment of components; the finite element analysis is performed for components individually in order to determine maximum possible von Mises stresses. Grid convergence is performed in the present analysis.

Keywords: knee implant; biomaterials; titanium alloys; ultra high molecular weight polyethylene; UHMWPE; TZP; stress deformation.

DOI: 10.1504/IJECB.2018.092265

International Journal of Experimental and Computational Biomechanics, 2018 Vol.4 No.2/3, pp.113 - 124

Received: 18 May 2017
Accepted: 06 Aug 2017
Published online: 12 Jun 2018 *

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