Transactions on Additive Manufacturing Meets Medicine
Vol. 2 No. 1 (2020): Trans. AMMM
https://doi.org/10.18416/AMMM.2020.2009018

Scaffolds, Implants and Drug Delivery Systems

Mechanical performances of lightweight structures for orthopaedic implants

Main Article Content

Lina Yan (Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore), Gavin K. O'Neill (Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore and Department of Orthopaedic Surgery, National University Hospital, Singapore)

Copyright (c) 2020 AMMM

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Abstract

Lightweight structures (LWS) or cellular structures have been widely applied in product designs for the aerospace and biomedical industries. Using the advanced additive manufacturing technology, orthopaedic implants can be designed using LWS to achieve low young’s modulus and good bending stiffness, with additional benefits of cell ingrowth if open lattices were designed. In this study, seven patterns of LWS were printed using selective laser melting method. To evaluate the effective young’s modulus as well as the bending stiffness of those LWS, tensile and four-points bending tests were conducted according to the standards of ASTM E8 and F382.

Article Details

How to Cite

Yan, L., & O’Neill, G. K. (2020). Mechanical performances of lightweight structures for orthopaedic implants. Transactions on Additive Manufacturing Meets Medicine, 2(1). https://doi.org/10.18416/AMMM.2020.2009018