Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant application
Solid metallic hip implants have much higher stiffness than the femur bone, causing stress-shielding and subsequent implant loosening. The development of low-stiff implants using metallic porous structures has been reported in the literature. Ti6Al4V alloy is a commonly used biomaterial for hip impl...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | International Journal for Simulation and Multidisciplinary Design Optimization |
| Subjects: | |
| Online Access: | https://www.ijsmdo.org/articles/smdo/full_html/2021/01/smdo210015/smdo210015.html |
| _version_ | 1829138040097865728 |
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| author | Rakesh Porika Pal Bidyut |
| author_facet | Rakesh Porika Pal Bidyut |
| author_sort | Rakesh Porika |
| collection | DOAJ |
| description | Solid metallic hip implants have much higher stiffness than the femur bone, causing stress-shielding and subsequent implant loosening. The development of low-stiff implants using metallic porous structures has been reported in the literature. Ti6Al4V alloy is a commonly used biomaterial for hip implants. In this work, Body-Center-Cubic (BCC), Cubic, and Spherical porous structures of four different porosities (82%, 76%, 70%, and 67%) were investigated to establish the range of ideal porosities of Ti6Al4V porous structures that can match the stiffness of the femur bone. The effective mechanical properties have been determined through Finite Element Analysis (FEA) under uniaxial compressive displacement of 0.32 mm. FEA predictions were validated with the analytical calculations obtained using Gibson and Ashby method. The effective mechanical properties of 82%, 76%, 70%, and 67% porous BCC and Cubic structures were found to match the mechanical properties of cortical bone closely. They were also well comparable to the Gibson-Ashby method-based calculations. BCC and Cubic porous structures with 67–82% porosity can mimic the stiffness of the femur bone and are suitable for low-stiff hip implant applications. |
| first_indexed | 2024-12-14T19:10:18Z |
| format | Article |
| id | doaj.art-a1856755f4b94b6b85e35bb75447b84e |
| institution | Directory Open Access Journal |
| issn | 1779-6288 |
| language | English |
| last_indexed | 2024-12-14T19:10:18Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | International Journal for Simulation and Multidisciplinary Design Optimization |
| spelling | doaj.art-a1856755f4b94b6b85e35bb75447b84e2022-12-21T22:50:45ZengEDP SciencesInternational Journal for Simulation and Multidisciplinary Design Optimization1779-62882021-01-01121210.1051/smdo/2021014smdo210015Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant applicationRakesh Porikahttps://orcid.org/0000-0001-6093-7290Pal Bidyuthttps://orcid.org/0000-0003-3470-6223Solid metallic hip implants have much higher stiffness than the femur bone, causing stress-shielding and subsequent implant loosening. The development of low-stiff implants using metallic porous structures has been reported in the literature. Ti6Al4V alloy is a commonly used biomaterial for hip implants. In this work, Body-Center-Cubic (BCC), Cubic, and Spherical porous structures of four different porosities (82%, 76%, 70%, and 67%) were investigated to establish the range of ideal porosities of Ti6Al4V porous structures that can match the stiffness of the femur bone. The effective mechanical properties have been determined through Finite Element Analysis (FEA) under uniaxial compressive displacement of 0.32 mm. FEA predictions were validated with the analytical calculations obtained using Gibson and Ashby method. The effective mechanical properties of 82%, 76%, 70%, and 67% porous BCC and Cubic structures were found to match the mechanical properties of cortical bone closely. They were also well comparable to the Gibson-Ashby method-based calculations. BCC and Cubic porous structures with 67–82% porosity can mimic the stiffness of the femur bone and are suitable for low-stiff hip implant applications.https://www.ijsmdo.org/articles/smdo/full_html/2021/01/smdo210015/smdo210015.htmlfinite element analysisporous structureship implantti6al4v alloyeffective elastic moduluseffective yield strength |
| spellingShingle | Rakesh Porika Pal Bidyut Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant application International Journal for Simulation and Multidisciplinary Design Optimization finite element analysis porous structures hip implant ti6al4v alloy effective elastic modulus effective yield strength |
| title | Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant application |
| title_full | Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant application |
| title_fullStr | Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant application |
| title_full_unstemmed | Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant application |
| title_short | Finite element analysis of Ti6Al4V porous structures for low-stiff hip implant application |
| title_sort | finite element analysis of ti6al4v porous structures for low stiff hip implant application |
| topic | finite element analysis porous structures hip implant ti6al4v alloy effective elastic modulus effective yield strength |
| url | https://www.ijsmdo.org/articles/smdo/full_html/2021/01/smdo210015/smdo210015.html |
| work_keys_str_mv | AT rakeshporika finiteelementanalysisofti6al4vporousstructuresforlowstiffhipimplantapplication AT palbidyut finiteelementanalysisofti6al4vporousstructuresforlowstiffhipimplantapplication |