Proceedings of the 5th FIRST T1 T2 2021 International Conference (FIRST-T1-T2 2021)

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Numerical Investigation of the Mechanical Properties of 3D Printed PLA Scaffold

Authors
Zainal Abidin1, Irfan Ghani Fadhlurrahman1, Imam Akbar1, Risky Utama Putra1, Akbar Teguh Prakoso1, M. Zahri Kadir1, Astuti Astuti1, Ardiyansyah Syahrom2, 3, Muhammad Imam Ammarullah4, J. Jamari4, Hasan Basri1, *
1Department of Mechanical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya, Ogan Ilir, Indonesia.
2Applied Mechanics and Design, School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia 81310 UTM Johor Bahru, Malaysia.
3Medical Devices and Technology Centre (MEDiTEC), Institute of Human Centred and Engineering (iHumEn), Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Malaysia.
4Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Tembalang, Semarang 50275, Central Java, Indonesia
*Corresponding author. Email: hasan_basri@unsri.ac.id
Corresponding Author
Hasan Basri
Available Online 14 February 2022.
DOI
10.2991/ahe.k.220205.015How to use a DOI?
Keywords
polylactic acid; porosity; scaffold; cancellous bone; modulus of elasticity
Abstract

This study aims to determine the dimensional accuracy and porosity of polylactic acid scaffold using 3D printing and the value of the effective elastic modulus. The main contribution of this research is to obtain the most suitable scaffold porosity for use as cancellous bone implants. It was obtained by comparing the dimensions and porosity of the printed scaffold with the CAD model and its effective modulus of elasticity with the cancellous bone. The 3D printing machine makes four scaffolds with varying porosity and one scaffold with 0% porosity. Scaffold dimensions were measured using a caliper. Measuring the volume of solids using a measuring cup and ethanol gives a porosity value, while as a benchmark for the total volume of the scaffold using 0% porosity. Computer simulation with MSC Marc software produces the effective modulus of elasticity. Scaffold with porosity variants of 42.9% and 58.1% showed that the results of the printed scaffold were perfect, while the porosity of 22.3% and 73.4% gave wrong impressions because they had too small pores or features. On the other hand, scaffolds with porosity of 58.1% and 73.4% had adequate elastic modulus corresponding to the span of cancellous bone. It was concluded that the porosity of the 58.1% scaffold was the best for use as a cancellous bone implant with accurate fabrication results.

Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

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Volume Title
Proceedings of the 5th FIRST T1 T2 2021 International Conference (FIRST-T1-T2 2021)
Series
Atlantis Highlights in Engineering
Publication Date
14 February 2022
ISBN
978-94-6239-535-0
ISSN
2589-4943
DOI
10.2991/ahe.k.220205.015How to use a DOI?
Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

Cite this article

risenwbib
TY  - CONF
AU  - Zainal Abidin
AU  - Irfan Ghani Fadhlurrahman
AU  - Imam Akbar
AU  - Risky Utama Putra
AU  - Akbar Teguh Prakoso
AU  - M. Zahri Kadir
AU  - Astuti Astuti
AU  - Ardiyansyah Syahrom
AU  - Muhammad Imam Ammarullah
AU  - J. Jamari
AU  - Hasan Basri
PY  - 2022
DA  - 2022/02/14
TI  - Numerical Investigation of the Mechanical Properties of 3D Printed PLA Scaffold
BT  - Proceedings of the 5th FIRST T1 T2 2021 International Conference (FIRST-T1-T2 2021)
PB  - Atlantis Press
SP  - 83
EP  - 89
SN  - 2589-4943
UR  - https://doi.org/10.2991/ahe.k.220205.015
DO  - 10.2991/ahe.k.220205.015
ID  - Abidin2022
ER  -