In geothermal energy, a huge energy potential lies in hydrothermal reservoirs close to magma where ultra-high temperature fluids (>450 C) can be harnessed. Well casing system needs to be properly designed to ensure its integrity during its service lifetime. There currently exist neither any commonly...

Operations where a flexible pipe, umbilical or cable is loaded out from an on-shore spool to the hold of an installation vessel can cause a build-up of torsion. In unfavourable cases, the torsion has been known to cause spiralling or various forms of damage to the tensile armour. This paper...

Dynamic umbilicals are usually exposed to cyclic environmental loads due to waves, motions of the host vessel, and current induced vibrations. These cyclic loads drive the fatigue design of functional components such as armor wires, steel tubes and conductor wires in an umbilical cross section...

This report summarized the development of a Finite Element framework for the description of bulk mass diffusion of a solute (hydrogen) in metallic materials (iron/steels). The implemented governing diffusion law accounts not only for the solute concentration gradients but also for the mechanical...