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Materials selection for hip prosthesis by the method of weighted properties

Process of materials selection for an artificial part, which is planted in vivo, has been always a vital procedure. Production and construction requirements for implants would involve a wide variety of considerations from mechanical specifications to medical limitations. From mechanical point of vie...

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Main Authors: Hamidi, Ehsan, Fazeli, Alireza, Mat Yajid, Muhamad Azizi, Che Sidik, Nor Azwadi
Format: Article
Language:English
Published: Penerbit UTM Press 2015
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/56090/1/CheSidikNorAzwadi2015_MaterialsSelectionforHipProsthesis.pdf
http://eprints.utm.my/id/eprint/56090/
http://dx.doi.org/10.11113/jt.v75.5291
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spelling my.utm.560902017-11-01T04:16:52Z http://eprints.utm.my/id/eprint/56090/ Materials selection for hip prosthesis by the method of weighted properties Hamidi, Ehsan Fazeli, Alireza Mat Yajid, Muhamad Azizi Che Sidik, Nor Azwadi TJ Mechanical engineering and machinery Process of materials selection for an artificial part, which is planted in vivo, has been always a vital procedure. Production and construction requirements for implants would involve a wide variety of considerations from mechanical specifications to medical limitations. From mechanical point of view, it is desired the implant exhibits mechanical properties of the missing bone as close as possible to reduce the risk of failure and provide a high level of comfort to the patient. The most bolded medical trait that prostheses must possess is the quality of biocompatible being; meaning that, they have to be accepted by the body’s living organisms. In this paper, five common biocompatible materials as candidates for hip prostheses production namely, 316L St Steel (cold worked, ASTM F138), Co–28Cr–6Mo (cast, ASTM F75), Ti–6Al–4V (hot forged, ASTM F620), Zirconia (ceramic, 3Y-TZP) and Alumina (ceramic, ZTA) are selected and evaluated by the method of weighted properties, in order to narrow down the search to find the candidate which best fit the real bone’s mechanical traits. For the analysis, six attributes were considered and weighted against each other namely, elastic modulus, yield strength, tensile strength, fatigue strength, corrosion rate and density. From the results, alumina and stainless steel show highest performance indexes but as it is discussed, due to the importance of biocompatibility required in practical, materials ranked on position 4th and 5th which are respectively of cobalt and titanium alloys–although are less mechanically similar to the real bone, are the most desirable choices in the industry. It will be concluded that in the process of materials selection for implants Penerbit UTM Press 2015-03 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/56090/1/CheSidikNorAzwadi2015_MaterialsSelectionforHipProsthesis.pdf Hamidi, Ehsan and Fazeli, Alireza and Mat Yajid, Muhamad Azizi and Che Sidik, Nor Azwadi (2015) Materials selection for hip prosthesis by the method of weighted properties. Jurnal Teknologi, 75 (11). pp. 1-9. ISSN 2180-3722 http://dx.doi.org/10.11113/jt.v75.5291 DOI:10.11113/jt.v75.5291
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Hamidi, Ehsan
Fazeli, Alireza
Mat Yajid, Muhamad Azizi
Che Sidik, Nor Azwadi
Materials selection for hip prosthesis by the method of weighted properties
description Process of materials selection for an artificial part, which is planted in vivo, has been always a vital procedure. Production and construction requirements for implants would involve a wide variety of considerations from mechanical specifications to medical limitations. From mechanical point of view, it is desired the implant exhibits mechanical properties of the missing bone as close as possible to reduce the risk of failure and provide a high level of comfort to the patient. The most bolded medical trait that prostheses must possess is the quality of biocompatible being; meaning that, they have to be accepted by the body’s living organisms. In this paper, five common biocompatible materials as candidates for hip prostheses production namely, 316L St Steel (cold worked, ASTM F138), Co–28Cr–6Mo (cast, ASTM F75), Ti–6Al–4V (hot forged, ASTM F620), Zirconia (ceramic, 3Y-TZP) and Alumina (ceramic, ZTA) are selected and evaluated by the method of weighted properties, in order to narrow down the search to find the candidate which best fit the real bone’s mechanical traits. For the analysis, six attributes were considered and weighted against each other namely, elastic modulus, yield strength, tensile strength, fatigue strength, corrosion rate and density. From the results, alumina and stainless steel show highest performance indexes but as it is discussed, due to the importance of biocompatibility required in practical, materials ranked on position 4th and 5th which are respectively of cobalt and titanium alloys–although are less mechanically similar to the real bone, are the most desirable choices in the industry. It will be concluded that in the process of materials selection for implants
format Article
author Hamidi, Ehsan
Fazeli, Alireza
Mat Yajid, Muhamad Azizi
Che Sidik, Nor Azwadi
author_facet Hamidi, Ehsan
Fazeli, Alireza
Mat Yajid, Muhamad Azizi
Che Sidik, Nor Azwadi
author_sort Hamidi, Ehsan
title Materials selection for hip prosthesis by the method of weighted properties
title_short Materials selection for hip prosthesis by the method of weighted properties
title_full Materials selection for hip prosthesis by the method of weighted properties
title_fullStr Materials selection for hip prosthesis by the method of weighted properties
title_full_unstemmed Materials selection for hip prosthesis by the method of weighted properties
title_sort materials selection for hip prosthesis by the method of weighted properties
publisher Penerbit UTM Press
publishDate 2015
url http://eprints.utm.my/id/eprint/56090/1/CheSidikNorAzwadi2015_MaterialsSelectionforHipProsthesis.pdf
http://eprints.utm.my/id/eprint/56090/
http://dx.doi.org/10.11113/jt.v75.5291
_version_ 1643653992738193408
score 13.211869

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