1. Ph.D. Student, Faculty of Civil Engineering, Czech Technical Univ., Thákurova 7, 160 00 Prague, Czech Republic; Institute of Theoretical and Applied Mechanics, Prosecká 76, 190 00, Prague, Czech Republic (corresponding author).
2. Associate Professor, Institute of Theoretical and Applied Mechanics, Prosecká 76, 190 00 Prague, Czech Republic.
3. Professor, Institute of Theoretical and Applied Mechanics, Prosecká 76, 190 00 Prague, Czech Republic.
4. Associate Professor, Faculty of Mechanical Engineering and Naval Architecture, Univ. of Zagreb, Ivana Lučića 5, Zagreb 10000, Croatia.