TY - JOUR T1 - Finite Element Simulation of Welding Distortion in Large Structure TT - پیش‌بینی المان محدود اعوجاج و تاثیر توالی در سازه جوشی بزرگ به روش تغییر شکل ذاتی JF - JWSTI JO - JWSTI VL - 1 IS - 1 UR - http://jwsti.iut.ac.ir/article-1-29-en.html Y1 - 2016 SP - 76 EP - 90 KW - FEM simulation KW - inherent deformation KW - solid element KW - shell element. N2 - Fusion welding is widely used in heavy industries to join different parts together. But sometimes welding-induced distortions cause problems like misalignment during assembling and make costs to remove them. Thus it is imperative to predict and mitigate them to improve weldments quality and also reduce in fabrication costs. This study at first will introduce inherent deformation method for prediction of welding-induced distortion. In following a relatively large panel will be simulated by finite element software ANSYS and its distortion will be calculated. The results will be compared by experimental measurement. Afterward this investigation will present an efficient welding sequence which produce minimal distortion. M3 ER -