Numerical modeling of reinforced concrete piles with steel rebars, FRP rebars and composite rebars under ship impact

One of the important topics in investigating damages caused by collisions of vessels with marine structures is determining the forces acting on the members with a random nature and analyzing the damages, as well as estimating the amount of damage to the integrity, load bearing capacity and fatigue lifetime of the platform.In this research, modeling and comparison of the behavior of reinforced concrete marine piles with steel, FRP and combined steel-FRP rebars has been done by ABAQUS software.theloading condition is considered as a side collision of a vessel with a certain mass and speed and considering the non-linear behavior of the materials and the geometry of the structure.inconcrete piles with completely steel components (rebars and ties), the shape and damage of the pile is less at the point of impact, but the transfer of energy and residual stress occurs in other parts, especially in the areas far from the impact.In piles with steel rebar and composite ties or fully composite components, the stress and strain and finally the local destruction of the structure are relatively higher, but the residual stress and strain are less seen in other components.