PSI - Issue 49

ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 49 (2023) 74–80

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICMD3M 2023 organizers Abstract Magnesium – hydroxyapatite metal-matrix composite (MMC-HA) is a biomaterial used in medical implants thanks to its adjustable mechanical properties. MMC-HA is exposed to high-temperature conditions during its manufacturing. Under such severe thermal loads, thermal residual stresses arise due to the mismatch in coefficients of thermal expansion between hydroxyapatite inclusions and the magnesium matrix, which could result in damage and failure. Additionally, morphology of HA inclusions affects the thermomechanical behaviour of MMC-HA but still lacks adequate investigation. In this work, the thermomechanical performance of MMC-HA under purely thermal loading is studied. A three-dimensional model with a single HA inclusion embedded in the Mg matrix domain was generated. Different responses of MMC-HA were analysed under fully fixed and periodic boundary conditions. The obtained results provided a relationship between the morphology of HA inclusions and the thermomechanical behaviour of MMC-HA. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICMD3M 2023 organizers Keywords: Magnesium; Hydroxyapatite; Metal matrix composite; Thermal load; Numerical simulations Nomenclature aspect ratio of ellipsoidal HA inclusion FFBC fully fixed boundary condition HA hydroxyapatite major length of ellipsoidal HA inclusion Medical Devices: Materials, Mechanics and Manufacturing Numerical analysis of high – temperature behaviour of magnesium – hydroxyapatite metal matrix composite Minghua Cao*, Konstantinos P. Baxevanakis, and Vadim V. Silberschmidt Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE11 3TU, UK Abstract Magnesium – hydroxyapatite metal-matrix composite (MMC-HA) is a biomaterial used in medical implants thanks to its adjustable mechanical properties. MMC-HA is exposed to high-temperature conditions during its manufacturing. Under such severe thermal loads, thermal residual stresses arise due to the mismatch in coefficients of thermal expansion between hydroxyapatite inclusions and the magnesium matrix, which could result in damage and failure. Additionally, morphology of HA inclusions affects the thermomechanical behaviour of MMC-HA but still lacks adequate investigation. In this work, the thermomechanical performance of MMC-HA under purely thermal loading is studied. A three-dimensional model with a single HA inclusion embedded in the Mg matrix domain was generated. Different responses of MMC-HA were analysed under fully fixed and periodic boundary conditions. The obtained results provided a relationship between the morphology of HA inclusions and the thermomechanical behaviour of MMC-HA. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICMD3M 2023 organizers Keywords: Magnesium; Hydroxyapatite; Metal matrix composite; Thermal load; Numerical simulations Nomenclature aspect ratio of ellipsoidal HA inclusion FFBC fully fixed boundary condition HA hydroxyapatite major length of ellipsoidal HA inclusion Medical Devices: Materials, Mechanics and Manufacturing Numerical analysis of high – temperature behaviour of magnesium – hydroxyapatite metal matrix composite Minghua Cao*, Konstantinos P. Baxevanakis, and Vadim V. Silberschmidt Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE11 3TU, UK

* Corresponding author. Tel.: +44 (0) 752-920-6871. E-mail address: M.Cao@lboro.ac.uk * Corresponding author. Tel.: +44 (0) 752-920-6871. E-mail address: M.Cao@lboro.ac.uk

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICMD3M 2023 organizers 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICMD3M 2023 organizers

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICMD3M 2023 organizers 10.1016/j.prostr.2023.10.012