The objective of the present paper is to develop nonlinear finite element method models for predicting the weld-induced initial deflection and residual stress of plating in steel stiffened-plate structures. For this purpose, three-dimensional thermo-elastic-plastic finite element method computations are performed with varying plate thickness and weld bead length (leg length) in welded plate panels, the latter being associated with weld heat input. The finite element models are verified by a comparison with experimental database which was obtained by the authors in separate studies with full scale measurements. It is concluded that the nonlinear finite element method models developed in the present paper are very accurate in terms of predicting the weld-induced initial imperfections of steel stiffened plate structures. Details of the numerical computations together with test database are documented.
Bruno, G., Yordan, G. and Soares, C.G. (2011) Effect of Weld Shape Imperfections on the Structural Hot-Spot Stress Distribution. Ships and Offshore Structures, 6, 145-159. https://doi.org/10.1080/17445302.2010.497052
Teresa, M. and Craig, F. (2013) Effect of Weld-Induced Imperfections on the Ultimate Strength of an Aluminium Patrol Boat Determined by the ISFEM Rapid Assessment Method. Ships and Offshore Structures, 9, 218-235.
Khedmati, M.R., Pedram, M. and Rigo, P. (2012) The Effects of Geometrical Imperfections on the Ultimate Strength of Aluminium Stiffened Plates Subject to Combined Uniaxial Compression and Lateral Pressure. Ships and Offshore Structures, 9, 88-109. https://doi.org/10.1080/17445302.2012.726761
Farajkhah, V., Liu, Y. and Gannon, L. (2016) Finite Element Study of 3D Simulated Welding Effect in Aluminium Plates. Ships and Offshore Structures, 12, 196-208.
Gannon, L.G., Liu, Y., Pegg, N.G. and Smith, M.J. (2012) Effect of Three-Dimensional Welding-Induced Residual Stress and Distortion Fields on Strength and Behaviour of Flat-Bar Stiffened Panels. Ships and Offshore Structures, 8, 565-578.
Khan, I. and Zhang, S. (2011) Effects of Welding-Induced Residual Stress on Ultimate Strength of Plates and Stiffened Panels. Ships and Offshore Structures, 6, 297-309. https://doi.org/10.1080/17445301003776209
Gannon, L.G., Pegg, N.G., Smith, M.J. and Liu, Y. (2013) Effect of Residual Stress Shakedown on Stiffened Plate Strength and Behaviour. Ships and Offshore Structures, 8, 638-652. https://doi.org/10.1080/17445302.2012.664429
Lindgren, L.E. and Karlsson, L. (1988) Deformations and Stresses in Welding of Shell Structures. International Journal for Numerical Methods in Engineering, 25, 635-655. https://doi.org/10.1002/nme.1620250223
Chen, B.Q., Hashemzadeh, M., Garbatov, Y. and Guedes Soares, C. (2015) Numerical and Parametric Modeling and Analysis of Weld-Induced Residual Stresses. International Journal of Mechanical and Material in Design, 11, 439-453.
Guangming, F., Marcelo, I.L., Menglan, D. and Segen, F.E. (2016) Influence of the Welding Sequence on Residual Stress and Distortion of Fillet Welded Structures. Marine Structures, 46, 30-55. https://doi.org/10.1016/j.marstruc.2015.12.001
Wang, J., Yuan, H., Ma, N. and Murakawa, H. (2016) Recent Research on Welding Distortion Prediction in Thin Plate Fabrication by Means of Elastic FE Computation. Marine Structures, 47, 42-59. https://doi.org/10.1016/j.marstruc.2016.02.004
Deng, D., Murakawa, H. and Liang, W. (2007) Numerical Simulation of Welding Distortion in Large Structures. Computer Methods in Applied Mechanics and Engineering, 196, 4613-4627. https://doi.org/10.1016/j.cma.2007.05.023
Wang, R., Zhang, J.X., Serizawa, H. and Murakawa, H. (2009) Study of Welding Inherent Deformations in Thin Plates Based on Finite Analysis using Interactive Substructure Method. Materials & Design, 30, 3474-3481.
Daniewicz, S.R., McAninch, M.D., Mc-Farland, B. and Knoll, D. (1993) Application of Distortion Control Technology during Fabrication of Large Offshore Structures. Proceedings of AWS/ORNL International Conference on Modeling and Control of Joining Processes, Orlando, 8-10 December 1993, 239-246.
Murakawa, H., Luo, Y. and Ueda, Y. (1996) Prediction of Welding Deformation and Residual Stress by Elastic FEM Based on Inherent Strain (First Report)—Mechanism of Inherent Strain Production. Journal of the Society of Naval Architects of Japan, 180, 739-751. (In Japanese) https://doi.org/10.2534/jjasnaoe1968.1996.180_739
Yi, M.S., Kim, S.H., Kim, S.J., Seo, J.K. and Paik, J.K. (2017) Development of an Empirical Formula for Predicting Weld-Induced Initial Deflection in Steel Stiffened-Plate Structures: Numerical and Experimental Studies.
Jiang, W., Luo, Y., Zhang, G. and Tu, S.-T. (2013) Experimental to Study the Effect of Multiple Weld-Repairs on Microstructure, Hardness and Residual Stress for a Stainless Steel Clad Plate. Materials & Design, 51, 1052-1059.
Jiang, W., Xu, X.P., Gong, J.M. and Tu, S.-T. (2012) Influence of Repair Length on Residual Stress in the Repair Weld of a Clad Plate. Nuclear Engineering and Design, 246, 211-219. https://doi.org/10.1016/j.nucengdes.2012.01.021
Jiang, W., Liu, Z., Gong, J.M. and Tu, S.-T. (2010) Numerical Simulation to Study the Effect of Repair Width on Residual Stresses of a Stainless Steel Clad Plate. International Journal of Pressure Vessels and Piping, 87, 457-463.
Paik, J.K. and Yi, M.S. (2016) Experimental and Numerical Investigations of Welding-Induced Distortions and Stresses in Steel Stiffened Plate Structures. The Korea Ship and Offshore Research Institute, Pusan National University, Busan.
Yi, M.S., Hyun, C.M., Cho, S.H. and Jang, T.W. (2009) A Study of Correction Effect in T-Bar According to Cooling Method. Proceeding of the 2009 Spring Annual Meeting of Korea Welding Society, Changwon, 21-22 April 2009, 60. (In Korean)
Ha, Y.S., Cho, S.H. and Jang, T.W. (2008) Development of Welding Distortion Analysis Method using Residual Strain as Boundary Condition. Material Science Forum, 580-582, 649-654.
Ha, Y. (2011) A Study on Weldment Boundary Condition for Elasto-Plastic Thermal Distortion Analysis of Large Welded Structures. Journal of Welding and Joining, 29, 410-415. https://doi.org/10.5781/KWJS.2011.29.4.410
Shin, S.B., Kim, K.K. and You, J.G. (2006) A Study on Control of Buckling Distortion at the Thin Panel during Welding. International Offshore and Polar Engineering Conference, San Francisco, CA, 28 May-2 June 2006, 236-242.
Lee, D.J. and Shin, S.B. (2003) A Study on the Prediction of Shrinkage during the Manufacturing of a Deckhouse of RIG. International Offshore and Polar Engineering Conference, Honolulu, 25-30 May 2003, 166-171.