Controllable Macroscopic Architecture of Subtractive Manufactured Porous Iron for Cancellous Bone Analogue: Computational to Experimental Validation

doi:10.1007/s42235-020-0029-0

Journal of Bionic Engineering ›› 2020, Vol. 17 ›› Issue (2): 357-369.doi: 10.1007/s42235-020-0029-0

Controllable Macroscopic Architecture of Subtractive Manufactured Porous Iron for Cancellous Bone Analogue: Computational to Experimental Validation

Muhammad Azfar Noordin1, Rabiatul Adibah Abdul Rahim2, Ahmad Nabeel Hakimi Roslan1, Iza Azura Ali3, Ardiyansyah Syahrom1,2, Amir Putra Md Saad1,2*

1. Applied Mechanics and Design, School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia,
81310 UTM Johor Bahru, Malaysia
2. Medical Devices and Technology Centre (MEDiTEC), Institute of Human Centred and Engineering (iHumEn), Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Malaysia
3. School of Biomedical & Health Science, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Malaysia

收稿日期:2019-09-18 修回日期:2019-12-18 接受日期:2020-01-07 出版日期:2020-03-10 发布日期:2020-04-08
通讯作者: Amir Putra Md Saad E-mail:amirputra@utm.my
作者简介:Muhammad Azfar Noordin1, Rabiatul Adibah Abdul Rahim2, Ahmad Nabeel Hakimi Roslan1, Iza Azura Ali3, Ardiyansyah Syahrom1,2, Amir Putra Md Saad1,2*

Controllable Macroscopic Architecture of Subtractive Manufactured Porous Iron for Cancellous Bone Analogue: Computational to Experimental Validation

Muhammad Azfar Noordin1, Rabiatul Adibah Abdul Rahim2, Ahmad Nabeel Hakimi Roslan1, Iza Azura Ali3, Ardiyansyah Syahrom1,2, Amir Putra Md Saad1,2*

1. Applied Mechanics and Design, School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia,
81310 UTM Johor Bahru, Malaysia
2. Medical Devices and Technology Centre (MEDiTEC), Institute of Human Centred and Engineering (iHumEn), Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Malaysia
3. School of Biomedical & Health Science, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Malaysia

Received:2019-09-18 Revised:2019-12-18 Accepted:2020-01-07 Online:2020-03-10 Published:2020-04-08
Contact: Amir Putra Md Saad E-mail:amirputra@utm.my
About author:Muhammad Azfar Noordin1, Rabiatul Adibah Abdul Rahim2, Ahmad Nabeel Hakimi Roslan1, Iza Azura Ali3, Ardiyansyah Syahrom1,2, Amir Putra Md Saad1,2*

摘要/Abstract

摘要： Higher strength and lower degradation rate of Fe compared to magnesium and zinc have made it the most reliable for orthopaedic reconstruction. Hence, this paper studies the morphological and mechanical characteristics of porous Fe fabricated using subtractive manufacturing for load bearing bone replacement. Three types of porous Fe (19%, 39% and 59%) were prepared and then modelled into a 3D model for finite element analysis. The mechanical properties evaluated through finite element analysis were then validated by the experimental results. Computational fluid dynamics was done in this study to evaluate the permeability and wall shear stress of the porous Fe. Correlations between morphological indices, mechanical properties, shear stress and permeability were then obtained. The mechanical behaviour of porous Fe investigated through finite element analysis was in good agreement with the experimental work. The mechanical properties of porous Fe specimen particularly sample C (modulus: 5.63 GPa and yield strength: 145.7 MPa) was tailored to the cancellous bone (modulus: 0.5 GPa – 18 GPa and yield strength: 101 MPa – 169.6 MPa). As the porosity increased, the performance of porous Fe regarding mechanical properties and morphological properties were enhanced.

关键词: mechanical characterization, morphology, finite element analysis, porous iron, shear stress, permeability

Abstract: Higher strength and lower degradation rate of Fe compared to magnesium and zinc have made it the most reliable for orthopaedic reconstruction. Hence, this paper studies the morphological and mechanical characteristics of porous Fe fabricated using subtractive manufacturing for load bearing bone replacement. Three types of porous Fe (19%, 39% and 59%) were prepared and then modelled into a 3D model for finite element analysis. The mechanical properties evaluated through finite element analysis were then validated by the experimental results. Computational fluid dynamics was done in this study to evaluate the permeability and wall shear stress of the porous Fe. Correlations between morphological indices, mechanical properties, shear stress and permeability were then obtained. The mechanical behaviour of porous Fe investigated through finite element analysis was in good agreement with the experimental work. The mechanical properties of porous Fe specimen particularly sample C (modulus: 5.63 GPa and yield strength: 145.7 MPa) was tailored to the cancellous bone (modulus: 0.5 GPa – 18 GPa and yield strength: 101 MPa – 169.6 MPa). As the porosity increased, the performance of porous Fe regarding mechanical properties and morphological properties were enhanced.

Key words: mechanical characterization, morphology, finite element analysis, porous iron, shear stress, permeability

Muhammad Azfar Noordin, Rabiatul Adibah Abdul Rahim, Ahmad Nabeel Hakimi Roslan, Iza Azura Ali, Ardiyansyah Syahrom, Amir Putra Md Saad. Controllable Macroscopic Architecture of Subtractive Manufactured Porous Iron for Cancellous Bone Analogue: Computational to Experimental Validation[J]. Journal of Bionic Engineering, 2020, 17(2): 357-369.

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Controllable Macroscopic Architecture of Subtractive Manufactured Porous Iron for Cancellous Bone Analogue: Computational to Experimental Validation

Controllable Macroscopic Architecture of Subtractive Manufactured Porous Iron for Cancellous Bone Analogue: Computational to Experimental Validation

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