[1] Univ Ghent, Fac Engn & Architecture, Soete Lab, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium
[2] Open Univ, Fac Civil Engn & Elect, Ho Chi Minh City, Vietnam
[3] Ton Duc Thang Univ, Div Computat Mech, Ho Chi Minh City, Vietnam
[4] Ton Duc Thang Univ, Fac Civil Engn, Ho Chi Minh City, Vietnam
[5] Univ Porto, Fac Engn, Dept Engn Mecan, Rua Dr Roberto Frias, P-4200465 Porto, Portugal