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Publication
Structural optimisation for medical implants through additive manufacturing
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Advisor(s)
Abstract(s)
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 tech niques, 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 scafolds for tissue engineering with improved mechanical and permeability properties;
metallic lattice structures with reduced weight and minimal stress shielding efect; and lightweight personalised orthopae dic 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.
Description
Keywords
Additive manufacturing Metallic lattice structures Orthopaedic implants Topology optimisation Tissue engineering scafolds
Citation
A.A. Al-Tamimi, H.A. Almeida & P.J. Bártolo (2020) “Structural optimisation for medical implants through additive manufacturing”, Progress in Additive Manufacturing (ISSN: 2363-9512 (Print) 2363-9520 (Online)), 5, 95-110. https://doi.org/10.1007/s40964-020-00109-7