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Progress in Additive Manufacturing

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24-02-2020 | Review Article

Structural optimisation for medical implants through additive manufacturing

Authors: Abdulsalam Abdulaziz Al-Tamimi, Henrique Almeida, Paulo Bartolo

Published in: Progress in Additive Manufacturing | Issue 2/2020

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Abstract

Advanced manufacturing techniques are being explored to fabricate degradable and non-degradable, porous or non-porous implants for medical applications. These implants have been designed using standard computer-aided design (CAD) and computer-aided engineering (CAE) tools and produced in a multitude of materials. The recent use of optimisation techniques, mainly topology optimisation, allows the development of additive manufactured medical devices with improved performance. This review discusses the combined use of optimisation techniques and additive manufacturing to produce biocompatible and biodegradable scaffolds for tissue engineering with improved mechanical and permeability properties; metallic lattice structures with reduced weight and minimal stress shielding effect; and lightweight personalised orthopaedic implants. Three optimisation routes are considered: topology optimisation; triply periodic minimal surfaces that can be manipulated by means of the equations parameters to optimise the overall performance; and the use of repetitive structures that are optimised as unit cells under certain conditions to compose a bulk object. Major limitations and research challenges are highlighted and discussed.

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Title: Structural optimisation for medical implants through additive manufacturing
Authors: Abdulsalam Abdulaziz Al-Tamimi
Henrique Almeida
Paulo Bartolo
Publication date: 24-02-2020
Publisher: Springer International Publishing
Published in: Progress in Additive Manufacturing / Issue 2/2020
Print ISSN: 2363-9512
Electronic ISSN: 2363-9520
DOI: https://doi.org/10.1007/s40964-020-00109-7

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Springer Professional "Wirtschaft+Technik"

Springer Professional "Technik"

Other articles of this Issue 2/2020

Development of additively manufacturable and electrically conductive graphite–polymer composites

Post-processing effects on the surface characteristics of Inconel 718 alloy fabricated by selective laser melting additive manufacturing

Extruded diameter dependence on temperature and velocity in the fused deposition modeling process

Current formulation approaches in design and development of solid oral dosage forms through three-dimensional printing

Post-yield performance of additive manufactured cellular lattice structures

A review on the use of additive manufacturing to produce lower limb orthoses

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