1. Professor, Dept. of Civil Engineering, Univ. of Thessaly, Volos 38334, Greece (corresponding author). ORCID: .
2. Postdoctoral Researcher, Dept. of Civil Engineering, Univ. of Thessaly, Volos 38334, Greece.
3. Professor, Centre of Offshore Foundation Systems, Univ. of Western Australia, 35 Stirling Hwy., Crawley, Perth, WA 6009, Australia.