Open Access

ARTICLE

Investigation of Inherent Deformation in Fillet Welded Thin Plate T-joints Based on Interactive Substructure and Inverse Analysis Method

by Rui Wang¹, Jianxun Zhang¹, Hisashi Serizawa², Hidekazu Murakawa²

1 State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, P.R.China
2 Joining and Welding Research Institute, Osaka University, 567-0047, Japan

Computer Modeling in Engineering & Sciences 2009, 44(1), 97-114. https://doi.org/10.3970/cmes.2009.044.097

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.

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Keywords

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