Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element Analysis

This study aims to validate, using finite element analysis (FEA), the design concept by comparing the fatigue behavior of hip implant stems coated with composite (carbon/PEEK) and polymeric (PEEK) coating materials corresponding to different human activities: standing up, normal walking and climbing...

Full description

Bibliographic Details
Main Authors: Ayham Darwich, Hasan Nazha, Monzer Daoud
Format: Article
Language:English
Published: Shahid Chamran University of Ahvaz 2020-04-01
Series:Journal of Applied and Computational Mechanics
Subjects:
Online Access:http://jacm.scu.ac.ir/article_14665_ff5fa2d4a2b55ceaf5c2de49b243b588.pdf
id doaj-bd2a9e21d79c47b7b17e630f3b93ed51
record_format Article
spelling doaj-bd2a9e21d79c47b7b17e630f3b93ed512020-11-24T22:04:46ZengShahid Chamran University of AhvazJournal of Applied and Computational Mechanics2383-45362383-45362020-04-016228429510.22055/jacm.2019.30017.165914665Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element AnalysisAyham Darwich0Hasan Nazha1Monzer Daoud2Faculty of Biomedical Engineering, Al-Andalus University for Medical Sciences, Tartous, SyriaFaculty of Technical Engineering, University of Tartous, Tartous, SyriaDepartment of Mechanical Engineering, École de Technologie Supérieure (ÉTS), Montreal, CanadaThis study aims to validate, using finite element analysis (FEA), the design concept by comparing the fatigue behavior of hip implant stems coated with composite (carbon/PEEK) and polymeric (PEEK) coating materials corresponding to different human activities: standing up, normal walking and climbing stairs under dynamic loadings to find out which of all these models have a better performance in the prosthesis-bone systems. A 3D finite element models of hip implants, femur, coating layers with polymeric (PEEK) and composite (carbon/PEEK) coating materials are created for FEA. The cyclic loads are applied on the prosthesis head. Fatigue life durations are calculated based on the Goodman mean-stress fatigue theory. The fatigue safety factor for the coated implant is increased more than 12.73% at least compared to the uncoated implant. The carbon/PEEK composite material with 0, +45, -45, and 90 degrees fiber orientation (configuration I) has the highest fatigue life and fatigue safety factor. The numerical result show that the carbon/PEEK composite material (configuration I) seems to be a good solution to increase the values of fatigue safety factor of coating layers due to highest fatigue life and fatigue safety factor. It distributes the applied load and transfers it to the bone, reducing stress-shielding effects and prolong the bone-prosthesis system life span.http://jacm.scu.ac.ir/article_14665_ff5fa2d4a2b55ceaf5c2de49b243b588.pdfHip implantsCoatingsPEEKCarbon/PEEKFatigue behaviorFinite element analysis
collection DOAJ
language English
format Article
sources DOAJ
author Ayham Darwich
Hasan Nazha
Monzer Daoud
spellingShingle Ayham Darwich
Hasan Nazha
Monzer Daoud
Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element Analysis
Journal of Applied and Computational Mechanics
Hip implants
Coatings
PEEK
Carbon/PEEK
Fatigue behavior
Finite element analysis
author_facet Ayham Darwich
Hasan Nazha
Monzer Daoud
author_sort Ayham Darwich
title Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element Analysis
title_short Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element Analysis
title_full Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element Analysis
title_fullStr Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element Analysis
title_full_unstemmed Effect of Coating Materials on the Fatigue Behavior of Hip Implants: A Three-dimensional Finite Element Analysis
title_sort effect of coating materials on the fatigue behavior of hip implants: a three-dimensional finite element analysis
publisher Shahid Chamran University of Ahvaz
series Journal of Applied and Computational Mechanics
issn 2383-4536
2383-4536
publishDate 2020-04-01
description This study aims to validate, using finite element analysis (FEA), the design concept by comparing the fatigue behavior of hip implant stems coated with composite (carbon/PEEK) and polymeric (PEEK) coating materials corresponding to different human activities: standing up, normal walking and climbing stairs under dynamic loadings to find out which of all these models have a better performance in the prosthesis-bone systems. A 3D finite element models of hip implants, femur, coating layers with polymeric (PEEK) and composite (carbon/PEEK) coating materials are created for FEA. The cyclic loads are applied on the prosthesis head. Fatigue life durations are calculated based on the Goodman mean-stress fatigue theory. The fatigue safety factor for the coated implant is increased more than 12.73% at least compared to the uncoated implant. The carbon/PEEK composite material with 0, +45, -45, and 90 degrees fiber orientation (configuration I) has the highest fatigue life and fatigue safety factor. The numerical result show that the carbon/PEEK composite material (configuration I) seems to be a good solution to increase the values of fatigue safety factor of coating layers due to highest fatigue life and fatigue safety factor. It distributes the applied load and transfers it to the bone, reducing stress-shielding effects and prolong the bone-prosthesis system life span.
topic Hip implants
Coatings
PEEK
Carbon/PEEK
Fatigue behavior
Finite element analysis
url http://jacm.scu.ac.ir/article_14665_ff5fa2d4a2b55ceaf5c2de49b243b588.pdf
work_keys_str_mv AT ayhamdarwich effectofcoatingmaterialsonthefatiguebehaviorofhipimplantsathreedimensionalfiniteelementanalysis
AT hasannazha effectofcoatingmaterialsonthefatiguebehaviorofhipimplantsathreedimensionalfiniteelementanalysis
AT monzerdaoud effectofcoatingmaterialsonthefatiguebehaviorofhipimplantsathreedimensionalfiniteelementanalysis
_version_ 1725828854997581824