The role of the fiber ply configurations on the biomechanics of the hip prosthesis  

作　　者：Kamran Hassani Mohammad Nikkhoo Alireza Karimi 

机构地区：[1]Department of Biomedical Engineering Science and Research Branch Islamic Azad University,Tehran,Iran [2]Department of Ophthalmology and Visual Sciences University of Alabama at Birmingham Birmingham,AL,USA

出　　处：《International Journal of Modeling, Simulation, and Scientific Computing》2022年第3期149-160,共12页建模、仿真和科学计算国际期刊（英文）

摘　　要：The total hip replacement is the only approved procedure for restoring a degenerated hip joint through operation.The life span of a prosthesis could depend on the geometry and material properties of the implant.This study aims to analyze the biomechanics of the carbon/polyetheretherketone(PEEK)composite prosthesis having three different fiber ply configurations compared to traditional stainless steel(SS)ones.The implant-bone system was established and subjected to a load from the head of the femur and abductor muscle sides.The stresses and strains in the implant-bone systems were calculated and compared.The results revealed lower stresses and strains in composite prostheses compared to SS ones.The fiber ply orientation of the carbon/PEEK composite prosthesis is shown to be a key asset in stress and strain distribution of the 13 implant-bone systems.The fiber plies which orientated multidirectionally with−45 and+45 degrees exhibited uniform stress and strain distributions.The results suggested the advantage of using composite prostheses in implant designs as they not only invoke lower stresses and strains in the implant-bone system but also amplify the life span of implants in the body.

关 键 词：PROSTHESIS hip joint composite stress STRAIN finite element 

分 类 号：TB3[一般工业技术—材料科学与工程]