1. Univ Gustave Eiffel, GERS-GeoEND, F-44344 Bouguenais, France
2. Aix-Marseille Université, CNRS, Centrale Méditerranée, LMA UMR7031, 13625 Aix-en-Provence, France
3. Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA