Affiliation: | 1. Institute of Continuum Mechanics, Leibniz Universit?t Hannover, Hannover, Germanymarino@ikm.uni-hannover.de ginu@bu.edu vairo@ing.uniroma2.it;3. Department of Mechanical Engineering, Boston University, Boston, USA;4. Department of Civil Engineering and Computer Science, Università degli Studi di Roma “Tor Vergata”, Rome, Italy |