Naslov
Numerical simulation of coupled problems

Autori
Harapin, Alen ; Radnić, Jure ; Sunara, Marina

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Computational Methods and Experimental Measurements XVII / Carlomagno, Giovanni Maria ; Poljak, Dragan ; Brebbia, Carlos - Southampton : Wessex Institute of Technology Press, 2015, 121-133

ISBN
978-1-84564-922-7

Skup
Computational Methods and Experimental Measurements XVII

Mjesto i datum
Opatija, Hrvatska, 05.05.2015. - 07.05.2015

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
coupled problems; fluid-structure interaction; SPH method; nonlinear

Sažetak
The paper briefly describes one numerical model for the simulation of fluid-structure coupled problems. The presented model is primarily intended to simulate the fluid-structure dynamic interaction in seismic conditions of civil engineering structures which are in direct contactwith fluid and which can often be encountered in engineering practice, for example: dams, water tanks (reservoirs), offshore structures, pipelines, water towers, etc. The model is based on the so called “partition scheme” where the equations governing the fluid’s pressures and the displacement of the structure are solved separately, with two distinct solvers. The SPH (Smooth Particle Hydrodynamics) method is used for the fluid and the standard FEM (Finite Element Method) is used for the structure, which can be made from reinforced concrete or steel and which can be simulated with shell or 3D elements. The model includes the most important nonlinear effects of reinforced concrete behaviour: yielding in compression and opening and propagation of cracks in tension (with tensile and shear stiffness of cracked concrete), as well as steel behaviour: yielding in compression and tension. The most important nonlinear effects of the fluid can also be simulated, like fluid viscosity, turbulence and cavitation. Some of the model’s possibilities are illustrated in a practical example.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

Napomena
The Conference, which took place in Opatija, Croatia, was sponsored by the International Journal of Computational Methods and Experimental Measurements.

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