The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue Behavior

The Finite Element Method (FEM) is one of advanced methods in modeling of solid mechanics used in the design and analyzing of prosthesis in the human body. One of the important factors in designing a femur (the linkage between basin and knee) which is under complicated stresses is to minimize the am...

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Main Authors: Ramin Meshabadi, Sayad Haji Mohamadi, Amir Kazemi
Format: Article
Language:English
Published: Islamic Azad University-Isfahan (Khorasgan) Branch 2010-06-01
Series:International Journal of Advanced Design and Manufacturing Technology
Online Access:https://admt.isfahan.iau.ir/article_534726_6517d2000ff49a08ac5bbd5c28c22280.pdf
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author Ramin Meshabadi
Sayad Haji Mohamadi
Amir Kazemi
author_facet Ramin Meshabadi
Sayad Haji Mohamadi
Amir Kazemi
author_sort Ramin Meshabadi
collection DOAJ
description The Finite Element Method (FEM) is one of advanced methods in modeling of solid mechanics used in the design and analyzing of prosthesis in the human body. One of the important factors in designing a femur (the linkage between basin and knee) which is under complicated stresses is to minimize the amount of the stress in the components of the prosthesis due to the body weight. In this research the authors have used prosthesis of two different substances to investigate the affect of the materials in the fatigue analyze. The other important factor is to apply a suitable linkage between prosthesis and bone called cement in order to prevent the slip of stem shape in the femur. In finite element analyze we have used contact elements for modeling the surfaces in contact. For the contact surface of stem shape and femur we have considered three cases: Bonded, slippage with the coefficient of friction 0, 0.22.  We have used Genetic Algorithms (GA) method to optimize the shape of prosthesis. The results have been compared with the results presented by Charnley which shows an improvement in the shape of prosthesis. The optimized angle is about 132 degrees.
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spelling doaj.art-c96fe63ae7044c708b700c221c32c4522023-10-18T09:56:52ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472010-06-0133534726The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue BehaviorRamin MeshabadiSayad Haji MohamadiAmir KazemiThe Finite Element Method (FEM) is one of advanced methods in modeling of solid mechanics used in the design and analyzing of prosthesis in the human body. One of the important factors in designing a femur (the linkage between basin and knee) which is under complicated stresses is to minimize the amount of the stress in the components of the prosthesis due to the body weight. In this research the authors have used prosthesis of two different substances to investigate the affect of the materials in the fatigue analyze. The other important factor is to apply a suitable linkage between prosthesis and bone called cement in order to prevent the slip of stem shape in the femur. In finite element analyze we have used contact elements for modeling the surfaces in contact. For the contact surface of stem shape and femur we have considered three cases: Bonded, slippage with the coefficient of friction 0, 0.22.  We have used Genetic Algorithms (GA) method to optimize the shape of prosthesis. The results have been compared with the results presented by Charnley which shows an improvement in the shape of prosthesis. The optimized angle is about 132 degrees.https://admt.isfahan.iau.ir/article_534726_6517d2000ff49a08ac5bbd5c28c22280.pdf
spellingShingle Ramin Meshabadi
Sayad Haji Mohamadi
Amir Kazemi
The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue Behavior
International Journal of Advanced Design and Manufacturing Technology
title The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue Behavior
title_full The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue Behavior
title_fullStr The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue Behavior
title_full_unstemmed The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue Behavior
title_short The Finite Element Method and Genetic Algorithm Approaches on Shape Optimization of Prosthesis According to Fatigue Behavior
title_sort finite element method and genetic algorithm approaches on shape optimization of prosthesis according to fatigue behavior
url https://admt.isfahan.iau.ir/article_534726_6517d2000ff49a08ac5bbd5c28c22280.pdf
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