Analysis of welds used in ship hull structures

Abstract

The aim of this thesis is to analyse the welds of the most commonly used processes in the fabrication of ship hull structures. These processes are Manual Metal Arc, Submerged Arc and Gas Metal Arc (co2 ). This work will determine: (1) which process is most suitable for fatigue, tensile and impact loading situations, (2) the effect on strength of corrosion, (3) the general characteristics of the processes and their welds, (4) the cause of any peculiar behaviour of the welds when under stress. This work will also outline the most common causes of weld failure and possible shortcomings of the welds.