The responses of a monopile offshore wind turbine subjected to irregular wave loads are investigated numerically and experimentally, considering a range of sea states. An extensive experimental campaign was carried out on a fully flexible model, representative of a 5 MW offshore wind turbine, at 1:4...

In this paper, the original double symmetric cross section beam formulation in RIFLEX used to model the blades is compared against a newly implemented generalised beam formulation, allowing for eccentric mass, shear and elastic centres. The generalised beam formulation is first evaluated against an ...

In this paper, the original double symmetric cross section beam formulation in RIFLEX used to model the blades is compared against a newly implemented generalised beam formulation, allowing for eccentric mass, shear and elastic centres. The generalised beam formulation is first evaluated against an ...

Impacts on pressure vessels, produced by winding glass fibre with vinyl ester resin over a polyethylene liner, were numerically and experimentally investigated in the current work. Pressure vessels were experimentally tested under low velocity impact loads. Different locations and incident energies ...

This paper presents an experimental/numerical study of low temperature pipe reeling, full-scale tests and small scale tests simulating the deformations and loads seen during reeling. The emphasis is on the polymer thermal insulation coating and the interfaces between the coating and steel pipe and b...

The full procedure for material characterisation of filament wound composite pipe is reported. Two different typologies of composite were used in order to evaluate the performance of the developed test methodology. Test samples were produced with glass/vinylester and carbon/epoxy in tubular section ...

Dynamic seals for drilling risers have in some cases shown unpredictable performance – especially under demanding conditions. In future the "nice wells" will diminish in number and the challenging HT/HP and complex drilling situations will be the focus for future developments in the Middle...