الفهرس 
Chapter [1]: IntroductionOnly 14 pages are availabe for public view
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Abstract
In shipbuilding industry, welding is a highly prevalent hot-works process that has undergone significant technological advancements. These advancements have allowed for the creation of watertight joints that prevent the infiltration of water and oil. Before the 20th century, forge welding was the first welding process used by Blacksmiths to join iron and steel through heating and hammering. However, towards the end of the 19th century, arc welding and oxyfuel welding emerged as the initial welding processes, with electric resistance welding following shortly thereafter.
Early in the 20th century, World War II (WWII), which increased the need for trustworthy and affordable joining techniques, sped up the development of welding technology. Following WWII, several modern welding processes were developed. These approaches included manual procedures like shielded metal arc welding (SMAW), which is now one of the most widely used welding techniques. Additionally, automatic and semi-automatic welding procedures such as flux-cored arc welding (FCAW), electro-slag welding (ESW), submerged arc welding (SAW), and gas metal arc welding (GMAW) were created.
There are many problems facing welding processes and researchers are making diligent efforts to overcome these problems to get the best welding links that ensure the durability of a ship’s hull. One of these problems is that there is difficulty in making the Butt-Joint welding welded on both sides (Double-Sided) to meet the requirements of the international classification societies.
This investigation gives a solution to this problem by proposing a solution in which this joint is welded only from one-sided and accepted by classification societies.
For this purpose, the research was divided into two phases: firstly, the experimental study of the One-Sided Butt-Welded Joints using the gas metal arc welding method for a six-welding sample. Secondly, the numerical model design for the accepted welded joint using the numerical analysis software package, a commercial software ABAQUS CAE - SIMULATM by Dassault Systems®, for theoretical results and comparison with experimental results.