OPTIMIZATION STUDY ON WELD-INDUCED DISTORTION USING OPEN-SOURCE FEA Z88 SOFTWARE

Abstract

Distortion is a significant defect that can occur during the welding process. This study aims to compare the accuracy of distortion results obtained through Finite Element Analysis (FEA) using open-source software with classical calculations. The purpose is to evaluate the capability of the open-source software, specifically Z88 Aurora, in performing FEA on welded parts. A simulation focusing on Gas Metal Arc Welding (GMAW) and T-joint welding, commonly used in the construction sector and shipbuilding structures, has been selected. The finite element method is utilized to predict the distortion caused by welding, and numerical computations are conducted with appropriate parameters such as boundary conditions and welding temperature. The Z88 Aurora software is employed for the finite element analysis. Before obtaining results, several steps are involved in the computational analysis. These steps include creating the design, importing it into Z88 Aurora, performing pre-processing tasks, and conducting postprocessing operations. A proper definition of boundary conditions, material selection, and parameter setting is crucial for achieving desired results. ASTM A572 is the material used in the simulation, with a steel plate thickness of 6mm. The obtained computational results will be compared to the classical method to assess their acceptability. The expected outcome of this study is to determine the compatibility and capability of Z88 Aurora software in simulating and analysing welding-induced distortion.