This work deals with the transient hydroelastic analysis of a sandwich beam which represents a boat hull. The beam is subjected to slamming pressure while it enters into water with constant vertically downward velocity. A coupled hydroelastic finite element model is developed using higher order shear and normal deformation theories for the faces and the core of the beam and the velocity potenti...

The box girder can be seen as a kind of simplified ship structure that withstand vertical bending moment. Dynamic loads play an important role in structural safety analysis, such bow slamming during harsh sea conditions. In this paper, the dynamic elastic–plastic response and ultimate strength under moment are analyzed. A with same cross-section scantlings span length Nishihara experiment is se...

This paper describes how tangential impact velocities can be incorporated into wellknown impact theories in deep and shallow water. Taking the deep and shallow flows in turn, it is shown how to link the normal impact Wagner and Korobkin theories to the tangential impact theories of planing and skimming respectively. An instability is revealed that limits the configurations that can be analysed ...

This paper focuses on the investigation carried out on the failure of the MSC Napoli using two-dimensional (2D) symmetric (i.e. vertical bending) hydroelasticity analysis. The aim of the investigation was to assess the influence of whipping-induced loads on the structural strength of this containership. Relevant structural, hydrostatic and operational data were provided. The calculations were c...

The water entry of a wedge has become model test in marine and naval engineering research. Wagner theory, originating 1932, predicts impact pressures, accounts for contributions to the total pressure arising from various flow domains vicinity wetting region on wedge. Here we study slamming pressures cone, impacting keeping constant, well-controlled velocity, throughout process, using high-fidel...