Performance Evaluation of Conventional Lattices Additively Manufactured Using PCL for Bone Scaffold Applications

Noorhafiza Muhammad; Muhammad Bilal; Kuang Yee Ng; Adleen Natasha Adnan; Mohd Shuhidan Saleh; Tariq Jamil; Kamalakanta Muduli

doi:10.58915/aset.v5i1.3219

Authors

Noorhafiza Muhammad Universiti Malaysia Perlis
Muhammad Bilal NED University of Engineering and Technology, Pakistan
Kuang Yee Ng Universiti Malaysia Perlis
Adleen Natasha Adnan Universiti Malaysia Perlis
Mohd Shuhidan Saleh Universiti Malaysia Perlis
Tariq Jamil NED University of Engineering and Technology, Pakistan
Kamalakanta Muduli Papua New Guinea University of Technology

DOI:

https://doi.org/10.58915/aset.v5i1.3219

Keywords:

Fused Deposition Modelling (FDM), Scanning Electron Microscope (SEM), Bone Scaffold, Conventional Lattice Structure

Abstract

The internal architecture of the bone scaffold is crucial for bone tissue engineering; i.e., the bone scaffold must be high-strength and lightweight. Besides architecture, materials are also influential parameters in designing the bone scaffold. This study aims to investigate the impact of different pore shapes on mechanical properties, which will exclusively apply to bone scaffolds. Dog-bone specimens made of Polycaprolactone (PCL) with four different porous structures, i.e., triangular, circular, hexagonal, and square, were tested on a Universal Testing Machine (UTM). These specimens were additively manufactured through the Fused Deposition Modelling (FDM) technique. Tensile and compression tests on a universal testing machine revealed that the hexagonal lattice specimen can sustain and bear more load under compression than the triangular and circular lattices. While under tensile load conditions, circular lattices can bear more load than triangular and hexagonal lattice specimens. The square-lattice specimen was found to be the least favorable for tensile and compressive loads. Hence, this research will aid in selecting the lattice structure for the bone scaffold design.

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