1. Ph.D. Candidate, School of Applied Mathematical and Physical Sciences, Dept. of Mechanics, I. Vardoulakis Laboratory of Geomaterials, National Technical Univ. of Athens, 15780 Zografou, Hellas.
2. Civil Engineer, School of Applied Mathematical and Physical Sciences, Dept. of Mechanics, I. Vardoulakis Laboratory of Geomaterials, National Technical Univ. of Athens, 15780 Zografou, Hellas.
3. Distinguished Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616; Emeritus Professor, School of Applied Mathematical and Physical Sciences, Dept. of Mechanics, I. Vardoulakis Laboratory of Geomaterials, National Technical Univ. of Athens, 15780 Zografou, Hellas.
4. Assistant Professor, School of Civil Engineering, Dept. of Geotechnical Engineering, National Technical Univ. of Athens, 15780 Zografou, Hellas (corresponding author). ORCID: .