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Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing

Metamaterials are composed of structural elements and their properties are derived mainly from the inner structure of the elements, rather than the properties of their constituent material. In this study, mechanical and biological properties of metamaterial made by selective laser melted cobalt chro...

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Main Authors: Saiful Anwar, Che Ghani, Siti Rohaida, Mohamed, Munirah, Sha’ban, W. S., Wan Harun, Nor Aida Zuraimi, Md Noar
Format: Article
Language:English
Published: Elsevier 2020
Subjects:
TJ Mechanical engineering and machinery
TS Manufactures
Online Access:http://umpir.ump.edu.my/id/eprint/30213/1/Experimental%20investigation%20of%20biological%20and%20mechanical%20properties%20of%20CoCrMo.pdf
http://umpir.ump.edu.my/id/eprint/30213/
https://doi.org/10.1016/j.procir.2020.05.122
https://doi.org/10.1016/j.procir.2020.05.122
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spelling my.ump.umpir.302132020-12-15T01:50:54Z http://umpir.ump.edu.my/id/eprint/30213/ Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing Saiful Anwar, Che Ghani Siti Rohaida, Mohamed Munirah, Sha’ban W. S., Wan Harun Nor Aida Zuraimi, Md Noar TJ Mechanical engineering and machinery TS Manufactures Metamaterials are composed of structural elements and their properties are derived mainly from the inner structure of the elements, rather than the properties of their constituent material. In this study, mechanical and biological properties of metamaterial made by selective laser melted cobalt chrome molybdenum (CoCrMo) were studied. Metamaterials of diamond and square shapes unit cells with 1.5–2.5 mm strut length and 0.4–0.6 mm strut thickness was prepared by layer-by-layer additive manufacturing technique. The metamaterials demonstrated excellent biological property under MTT assay cytotoxicity after 14 days cell cultured. Comparisons of the experimental data between two unit cell types made by compression tests exhibited that the stiffness of square shape is always higher 20% than those of diamond type, nonetheless all the tested materials satisfy the young’s modulus of human cancellous bone. Furthermore, the compression tests also resulted in determining both unit cell types with strut thickness 0.6 mm and strut length 1.5 mm to meet the compressive strength of human cortical bone. The tailored metamaterials by modifying the unit cell sizes and shapes of fabricated bone implant can be achieved by using additive manufacturing technique. The design concepts of internal structures by determining the properties of metamaterials demonstrated in this study will be valuable in future biomedical applications. Elsevier 2020 Article PeerReviewed pdf en cc_by_nc_nd_4 http://umpir.ump.edu.my/id/eprint/30213/1/Experimental%20investigation%20of%20biological%20and%20mechanical%20properties%20of%20CoCrMo.pdf Saiful Anwar, Che Ghani and Siti Rohaida, Mohamed and Munirah, Sha’ban and W. S., Wan Harun and Nor Aida Zuraimi, Md Noar (2020) Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing. Procedia CIRP, 89. pp. 79-91. ISSN 2212-8271 https://doi.org/10.1016/j.procir.2020.05.122 https://doi.org/10.1016/j.procir.2020.05.122
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
TS Manufactures
spellingShingle TJ Mechanical engineering and machinery
TS Manufactures
Saiful Anwar, Che Ghani
Siti Rohaida, Mohamed
Munirah, Sha’ban
W. S., Wan Harun
Nor Aida Zuraimi, Md Noar
Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing
description Metamaterials are composed of structural elements and their properties are derived mainly from the inner structure of the elements, rather than the properties of their constituent material. In this study, mechanical and biological properties of metamaterial made by selective laser melted cobalt chrome molybdenum (CoCrMo) were studied. Metamaterials of diamond and square shapes unit cells with 1.5–2.5 mm strut length and 0.4–0.6 mm strut thickness was prepared by layer-by-layer additive manufacturing technique. The metamaterials demonstrated excellent biological property under MTT assay cytotoxicity after 14 days cell cultured. Comparisons of the experimental data between two unit cell types made by compression tests exhibited that the stiffness of square shape is always higher 20% than those of diamond type, nonetheless all the tested materials satisfy the young’s modulus of human cancellous bone. Furthermore, the compression tests also resulted in determining both unit cell types with strut thickness 0.6 mm and strut length 1.5 mm to meet the compressive strength of human cortical bone. The tailored metamaterials by modifying the unit cell sizes and shapes of fabricated bone implant can be achieved by using additive manufacturing technique. The design concepts of internal structures by determining the properties of metamaterials demonstrated in this study will be valuable in future biomedical applications.
format Article
author Saiful Anwar, Che Ghani
Siti Rohaida, Mohamed
Munirah, Sha’ban
W. S., Wan Harun
Nor Aida Zuraimi, Md Noar
author_facet Saiful Anwar, Che Ghani
Siti Rohaida, Mohamed
Munirah, Sha’ban
W. S., Wan Harun
Nor Aida Zuraimi, Md Noar
author_sort Saiful Anwar, Che Ghani
title Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing
title_short Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing
title_full Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing
title_fullStr Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing
title_full_unstemmed Experimental investigation of biological and mechanical properties of CoCrMo based selective laser melted metamaterials for bone implant manufacturing
title_sort experimental investigation of biological and mechanical properties of cocrmo based selective laser melted metamaterials for bone implant manufacturing
publisher Elsevier
publishDate 2020
url http://umpir.ump.edu.my/id/eprint/30213/1/Experimental%20investigation%20of%20biological%20and%20mechanical%20properties%20of%20CoCrMo.pdf
http://umpir.ump.edu.my/id/eprint/30213/
https://doi.org/10.1016/j.procir.2020.05.122
https://doi.org/10.1016/j.procir.2020.05.122
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score 13.211869

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