1. a Composite Materials Group, Mechanical and Aeronautics Engineering Department, University of Patras, Patras, GR-26500, Greece
2. b Composite Materials Group, Mechanical and Aeronautics Engineering Department, University of Patras, Patras, GR-26500, Greece
3. c Composite Materials Group, Mechanical and Aeronautics Engineering Department, University of Patras, Patras, GR-26500, Greece