Mechanical behaviours and mass transport properties of bone-mimicking scaffolds consisted of gyroid structures manufactured using selective laser melting

Journal of the Mechanical Behavior of Biomedical Materials
Shuai MaFuyu Guo

Abstract

Bone scaffolds created in porous structures manufactured using selective laser melting (SLM) are widely used in tissue engineering, since the elastic moduli of the scaffolds are easily adjusted according to the moduli of the tissues, and the large surfaces the scaffolds provide are beneficial to cell growth. SLM-built gyroid structures composed of 316L stainless steel have demonstrated superior properties such as good corrosion resistance, strong biocompatibility, self-supported performance, and excellent mechanical properties. In this study, gyroid structures of different volume fraction were modelled and manufactured using SLM; the mechanical properties of the structures were then investigated under quasi-static compression loads. The elastic moduli and yield stresses of the structures were calculated from stress-strain diagrams, which were developed by conducting quasi-static compression tests. In order to estimate the discrepancies between the designed and as-produced gyroid structures, optical microscopy and micro-CT scanner were used to observe the structures' micromorphology. Since good fluidness is conducive to the transport of nutrients, computational fluid dynamics (CFD) values were used to investigate the pressure an...Continue Reading

Citations

Jan 23, 2021·Journal of Biological Engineering·Fuyuan DengJuncai Liu
Feb 16, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Cambre N KellyKen Gall
Apr 13, 2021·Frontiers in Bioengineering and Biotechnology·Yuting LvLiqiang Wang
Jul 21, 2021·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Xiaoquan ShiHaohao Ning
Nov 11, 2019·ACS Biomaterials Science & Engineering·Qing HanJincheng Wang
Jul 7, 2021·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Masud RanaAmit Roychowdhury

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