[1] Univ Roma La Sapienza, Dipartimento Ingn Strutturale & Geotecn, I-00198 Rome, Italy
[2] Otto Von Guericke Univ, Inst Mech, Fac Mech Engn, D-39106 Magdeburg, Germany
[3] South Sci Ctr RASci, Rostov Na Donu 344090, Russia
[4] South Fed Univ, Rostov Na Donu 344090, Russia
[5] Univ Alberta, Fac Engn, Dept Mech Engn, Edmonton, AB T6G 2G8, Canada