@Article{cmes.2009.044.097, AUTHOR = {Rui Wang, Jianxun Zhang, Hisashi Serizawa, Hidekazu Murakawa}, TITLE = {Investigation of Inherent Deformation in Fillet Welded Thin Plate T-joints Based on Interactive Substructure and Inverse Analysis Method}, JOURNAL = {Computer Modeling in Engineering \& Sciences}, VOLUME = {44}, YEAR = {2009}, NUMBER = {1}, PAGES = {97--114}, URL = {http://www.techscience.com/CMES/v44n1/25320}, ISSN = {1526-1506}, ABSTRACT = {In this paper, the inherent deformation of fillet welded thin plate T-joints is studied. The prediction procedure of inherent deformation consists of three parts: part one, a three dimensional (3D) thermo-elastic-plastic analysis using an in house finite element (FE) code of interactive substructure method (ISM) is utilized to obtain the welding distortions; part two, corresponding experiments are carried out to verify the computational results of ISM; part three, using the verified computational results, the inverse analysis is utilized to evaluate the welding inherent deformation. Based on the results in this study, an inherent deformations database of fillet welded thin plate T-joints with 8 welding materials is developed. Meanwhile, the influence of welding heat input parameter on inherent deformation is discussed. The results show that the prediction procedure of inherent deformation is effectiveness. The inherent deformation is the key parameters to estimate distortion in fillet welded thin plate T-joints by elastic analysis. Welding heat input parameter and material properties have significant influence on welding inherent deformation.}, DOI = {10.3970/cmes.2009.044.097} }