1. Researcher, Department of Civil Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
2. Assistant Researcher, Hydraulic Structures and Sea Energy Research Group, Department of Civil Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
3. Professor, Department of Civil Engineering, Faculty of Engineering, University of Porto, Rua. Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
4. Professor, Department of Mechanical and Structural Engineering and Materials Science, University of Stavanger, P.O. Box 8600 Forus, N-4036 Stavanger, Norway
5. Professor, Department of Mechanical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal