Multiphysics Investigation of Composite Shell Structures Subjected to Water Shock Wave Impact in Petroleum Industry

The failure of shell structures under dynamic water shock loads and the effects of the fluid-structure interactions on the structural failure arising during fluidic loading have been investigated to a much lesser extent, especially for composites. Advance s in numerical modelling procedures have enabled the modelling of fluid-structure interactions, and consequently there is a need to investigate the failure of composite shell structures upon water impact in order to gain knowledge of the effects of the fl uid-structure interactions upon the structural failure. It is essential to obtain an in depth knowledge of the impact forces, accelerations and material behaviour for a range of impact conditions, which is crucial in the development of numerical modelling techniques and is urgently required by the petroleum industry. Fluid-structure interaction problems are strongly dominated by the coupling of the induced fluid oscillations and the resulting motion of the structure. Despite this, some researchers have si mplified the problem and treated it in a decoupled manner. Therefore, to model the transient response of the composite shell impacted by a water shock wave, it will be necessary to analyse the problem as a coupled fluid-structure phenomenon using the Arbi trary Lagrange Euler (ALE) method.