Contact Stress Generation on the UHMWPE Tibial Insert
Journal Title: Tribology in Industry - Year 2014, Vol 36, Issue 4
Abstract
Total knee replacement (TKR) is considered, during last years, as a very successful surgical technique for removing knee joint deformities and eliminating pain caused by cartilage damage. In literature, as primary causes for knee joint endoprothesis damage are cited complex movements which cause occurrences of complex stress conditions, sagital radius conformity, sliding, types of materials etc. Aim of this study is analysis of contact stresses that occur on tibial implant for 15°, 45° and 60° knee flexion and 50 kg, 75 kg, 100 kg and 125 kg weight. Knee joint prosthesis model and finite elements method (FEM) analysis are done in software Catia V5. For this analysis we used ultra-high molecular weight polyethylene (UHMWPE) for tibial implant material and AISI 316, AISI 317, AISI 321, 17-4PH, CoCrMo, Ti6Al4V and SAE A-286 for femoral component materials. Results show that area of maximal contact stress is identified in medial and lateral part of tibial implant. Von Mises stress values vary regarding of flexion degree and weight, but values are approximate for types of chosen materials. Contact stress location corresponds to damage that occur on tibial implant during exploitation.
Authors and Affiliations
S. Petrović Savić , D. Adamović , G. Devedžić , B. Ristić , A. Matić
Keywords
Related Articles
- EP ID EP121816
- DOI -
- Views 111
- Downloads 0
Mixed Lubrication Solution of Dynamically Loaded Radial Slide Bearings
A solution of radial slide bearing dynamics and tribology incorporating the influences of real surface roughness contacts or the influence of surface roughness on bearing lubrication is presented in this paper. Finite di...
Possibility of Replacing the Chorinated Paraffins in Metalworking Fluids
All components that are used for neat oil formulations for metalworking operations belong to group of chemicals that, because of its direct application, can have a big influence on the environment and especially on human...
Stresses and Deformations Analysis of a Dry Friction Clutch System
The friction clutch is considered the essential element in the torque transmission process. In this paper, the finite element method is used to study the stresses and deformations for clutch system (pressure plate, clutc...
Electrochemical Investigation of Erosion-corrosion Behavior of 6061 Aluminum Alloy in Marine Environment
The liquid-solid erosion-corrosion behavior of aluminum in artificial seawater medium at open circuit has been investigated using a submerged jet impingement rig. The aluminum alloy 6061 coupons subjected to erosion corr...
The Investigation of Coated Tools Tribological Characteristics Influence on the Cutting Process and the Quality Parameters of the Parts Surface Layer
The influence of cutting tools nanostructured coatings on the parameters of machined parts surface layer has been researched. The interaction between friction characteristics of coated tools and shear plane angle during...