With contributions from: J.M. Adam, A. Ammar, J.V. Araujo dos Santos, R.C. Barros, K.J. Bathe, F. Bordeu, A. Borna, M.A. Bradford, P.A. Calderon, E. Carrera, M.B. Cesar, F. Chinesta, E. Cueto, R. Darvizeh, K. Davey, A. Eriksson, J. Garzon-Roca, W.G. Habashi, X. Jia, L. Kaczmarczyk, A.S.K. Kwan, A. Leygue, H. Lopes, F. Magoules, H.A. Mang, K. Marti, G. McClure, M. Mousavi Nezhad, G. Muscolino, A. Pagani, F.J. Pallares, C.J. Pearce, M. Petrolo, Y.-L. Pi, P.N. Psarropoulos, A. Sofi, Y. Tsompanakis and E. Zappino. This volume includes the invited lectures presented at: The Eleventh International Conference on Computational Structures Technology and The Eighth International Conference on Engineering Computational Technology held concurrently in Dubrovnik, Croatia from 4-7 September 2012.