Monopile responses to monotonic and cyclic loading in undrained sand using 3D FE with SANISAND-MSu

Monopile response under undrained conditions in sand is gaining increasing interests owing to the recent development of offshore wind farms seismic regions. Pore pressure evolution liquefiable soil can significantly reduce strength and stiffness which turn affects structural dynamic response. Several numerical models have been developed last two decades enhance understanding mechanism monopile–soil interaction with existence pore water pressure. In this study, effects geometry static vertical load on monopile lateral were studied using three-dimensional finite element methods that consider cyclic load-induced To achieve reliable simulation results pile displacement accumulation during loading, simple anisotropic model memory surface for behavior was adopted. For piles same diameter, a accumulated head loading decreased linearly embedded length but increased eccentricity. Static had minor The distributions mean effective stress domain presented. reaction curve (cyclic against defection) extracted. aim provide reference optimized engineering design procedures.