1. a EADS Corporate Fundation Internantional Chair , GEM, UMR CNRS - Centrale Nantes , 1 rue de la Noe, BP 92101, 44321 , Nantes cedex 3, France
2. b Laboratoire de Rhéologie , 1301 rue de la piscine, BP 53 Domaine universitaire, 38041 , Grenoble cedex 9, France
3. c Group of Structural Mechanics and Materials Modelling Aragón Institute of Engineering Research (I3A) , Universidad de Zaragoza , Maria de Luna, 3, E-50018 , Zaragoza , Spain