APPLIED MATHEMATICAL MODELLING, cilt.32, sa.11, ss.2396-2412, 2008 (SCI-Expanded)
Elasto-plastic earthquake response of arch dams including fluid-structure interaction by the Lagrangian approach is mainly investigated in this study. To this aim, three-dimensional eight-noded version of Lagrangian fluid finite element including the effects of compressible wave propagation and surface sloshing motion, and three-dimensional version of Drucker-Prager model based on associated flow rule assumption were programmed in FORTRAN language by authors and incorporated into the program NONSAP. Two new components added into the NONSAP were tested on a simple fluid tank and a simple fluid-structure system and obtained very reasonable results.