1. Faculty of Engineering, University of Nottingham, 6123 Nottingham, Nottinghamshire, United Kingdom of Great Britain and Northern Ireland, NG8 1BB (e-mail: matteo.russo@nottingham.ac.uk)
2. Faculty of Engineering, University of Nottingham, 6123 Nottingham, Nottinghamshire, United Kingdom of Great Britain and Northern Ireland, NG8 1BB (e-mail: jorge.barrientosdiez@nottingham.ac.uk)
3. Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, 6123 Nottingham, Nottinghamshire, United Kingdom of Great Britain and Northern Ireland, NG7 2RD (e-mail: dragos.axinte@nottingham.ac.uk)