Vessel Hull Cracking Investigation

AMOG was the technical lead for the ongoing investigation of cracking damage in a class of small aluminium hull vessels.

We conduced hydrodynamic analysis to determine the dynamic wave pressure leads and bow slamming loads in a number of key operating conditions, including extraction of the spatial variation of these forces to allow transfer of the loads to structural analysis.

Using these hydrodynamic forced, the structural response of the vessel was assessed. The range of analyses included linear static and transient analysis, which indicated that cracking observed in the vessels was likely a result of fatigue induced by the combination of the longitudinal bending moments and the bow slamming forces due to the vessel hydrodynamic response.