PSI - Issue 42

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 42 (2022) 777–784

© 2022 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 the scientific committee of the 23 European Conference on Fracture – ECF23 Abstract Compacted graphite iron (CGI), a type of cast iron, forms an integral part of the industry worldwide thanks to its good thermal and mechanical properties, excellent wear resistance, and competitive price. Despite the extensive research on cast irons since the 1950s, their thermomechanical behaviour and, especially, their fracture at the microscale is not yet fully understood. Interfacial debonding is the main mechanism of fracture in compacted graphite iron. Such features of interfacial-debonding initiation, thermal interfacial damage and deformation between graphite inclusions and a surrounding matrix are investigated in this work. A three-dimensional unit cell comprising the matrix and a graphite inclusion is developed to simulate thermal deformation and damage under pure thermal loading; both phases were assumed to have elastoplastic behaviours. Different fracture mechanisms were analysed under fully fixed and periodic boundary conditions. The results could provide a deeper understanding of the mechanisms of thermal deformation and fracture in compacted graphite iron. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23 Keywords: Compacted graphite iron, interfacial damage, numerical simulation Nomenclature area of graphite (2D) aspect ratio of vermicular graphite This is an open access article under the CC BY-NC-ND license (http://creativeco 23 European Conference on Fracture - ECF23 High-temperature deformation and interfacial damage in CGI: 3D numerical analysis Minghua Cao, Evangelia Nektaria Palkanoglou, Konstantinos P. Baxevanakis * , Vadim V. Silberschmidt Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE11 3TU, UK K *

* Corresponding author. Tel.: +44 (0) 1509 227030; fax: +44 (0) 1509 227648. E-mail address: K.Baxevanakis@lboro.ac.uk

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23

2452-3216 © 2022 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 the scientific committee of the 23 European Conference on Fracture – ECF23 10.1016/j.prostr.2022.12.098