International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
권호 표지
DOI QR코드

DOI QR Code

Simplified welding distortion analysis for fillet welding using composite shell elements

  • Kim, Mingyu (Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kang, Minseok (Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology) ;
  • Chung, Hyun (Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology)
  • Received : 2014.07.13
  • Accepted : 2015.02.10
  • Published : 2015.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents the simplified welding distortion analysis method to predict the welding deformation of both plate and stiffener in fillet welds. Currently, the methods based on equivalent thermal strain like Strain as Direct Boundary (SDB) has been widely used due to effective prediction of welding deformation. Regarding the fillet welding, however, those methods cannot represent deformation of both members at once since the temperature degree of freedom is shared at the intersection nodes in both members. In this paper, we propose new approach to simulate deformation of both members. The method can simulate fillet weld deformations by employing composite shell element and using different thermal expansion coefficients according to thickness direction with fixed temperature at intersection nodes. For verification purpose, we compare of result from experiments, 3D thermo elastic plastic analysis, SDB method and proposed method. Compared of experiments results, the proposed method can effectively predict welding deformation for fillet welds.

Keywords

References

  1. Deng, D., Liangand, W. and Murakawa, H., 2007. Determination of weldingde for mationinfillet welded joint by mean so fnumerical simulation andcomparison with experimental measurements. Journal of Materials Processing Technology, 183(2), pp.219-225. https://doi.org/10.1016/j.jmatprotec.2006.10.013
  2. Deng, D., Murakawa, H. and Liang, W., 2007. Numerical simulation of welding distortion in large structures. Computer methods in applied mechanics and engineering, 196(45), pp. 4613-4627. https://doi.org/10.1016/j.cma.2007.05.023
  3. Ha, Y.S., Cho, S.H. and Jang, T.W., 2008. Development of welding distortion analysis method using residual strain as boundary condition. Materials Science Forum, 580-582, pp.649-654. https://doi.org/10.4028/www.scientific.net/MSF.580-582.649
  4. Jang, C.D., Seo, S.I. and Ko, D.E., 1997. A study on the prediction of deformations of plates due to line heating using a simplified thermal elasto-plastic analysis. Journal of Ship Production,13(1), pp.22-27.
  5. Jung, G. and Tsai, C., 2004. Plasticity-based distortion analysis for fillet welded thin plate T-joints. Welding Journal-New York, 83, pp.177-S.
  6. Luo, Y., Ishiyama, M. and Murakawa, H., 1999. Welding deformation of plates with longitudinal curvature (Mechanics, Strength & Structure Design). Transaction of JWRI, 28(2), pp.57-65.
  7. Luo, Y., Murakawa, H. and Ueda, Y., 1997. Prediction of welding deformation and residual stress by elastic FEM based on inherent strain (report I): mechanism of inherent strain production (mechanics, strength & structure design). Transactions of JWRI, 26(2), pp.49-57.
  8. Ma, N.X., Ueda, Y., Murakawa, H. and Maeda, H., 1995. FEM analysis of 3-D welding residual stresses and angular distortion in T-type fillet welds (mechanics, strength & structural design). Transactions of JWRI, 24(2), pp.115-122.
  9. Peric, M., Tonkovic, Z., Rodic, A., Surjak, M., Garasic, I., Boras, I. and Svaic, S., 2014. Numerical analysis and experimental investigation of welding residual stresses and distortions in a T-joint fillet weld. Materials & Design, 53, pp. 1052-1063. https://doi.org/10.1016/j.matdes.2013.08.011
  10. Teng, T.L., Fung, C.P. Chang, P.H. and Yang, W.C., 2001. Analysis of residual stresses and distortions in T-joint fillet welds. International Journal of Pressure Vessels and Piping, 78(8), pp.523-538. https://doi.org/10.1016/S0308-0161(01)00074-6
  11. Ueda, Y., Fukuda, K., Nakacho, K. and Endo, S., 1975. A new measuring method of residual stresses with the aid of finite element method and reliability of estimated values. Transactions of JWRI, 4(2), pp.123-131. https://doi.org/10.1007/BF00164683
  12. Ueda, Y., Kim, Y.C. and Yuan, M.G., 1989. A predicting method of welding residual stress using source of residual stress (report I): characteristics of inherent strain (source of residual stress) (mechanics, strength & structural design). Transactions of JWRI, 18(1), pp.135-141.
  13. Ueda, Y. and Ma, N.X., 1994. Measuring methods of three-dimensional residual stresses with aid of distribution function of inherent strain (Report I): a function method for estimating inherent strain distributions (mechanics, strength & structural design). Transactions of JWRI, 23(1), pp.71-78.
  14. Wang, J., Rashed, S., Murakawa, H. and Luo, Y., 2013. Numerical prediction and mitigation of out-of-plane welding distortion in ship panel structure by elastic FE analysis. Marine Structures, 34, pp.135-155. https://doi.org/10.1016/j.marstruc.2013.09.003

Cited by

  1. Optimization of MIG Welding Parameters to Control the Angular Distortion in Fe410WA Steel vol.31, pp.16, 2015, https://doi.org/10.1080/10426914.2015.1127939
  2. Review on Mitigation of Welding-Induced Distortion Based on FEM Analysis vol.38, pp.1, 2015, https://doi.org/10.5781/jwj.2020.38.1.6
  3. Investigation on Welded T-Joint Distortion Using Virtual Manufacturing Tools with Simplified Procedure vol.37, pp.2, 2015, https://doi.org/10.7736/jkspe.019.090
  4. Research on Deformation Model of Welding Material Based on Inherent Strain Finite Element Prediction Method vol.980, pp.None, 2015, https://doi.org/10.4028/www.scientific.net/msf.980.58
  5. Multi-Pass Welding Distortion Analysis Using Layered Shell Elements Based on Inherent Strain vol.9, pp.6, 2015, https://doi.org/10.3390/jmse9060632
  6. Welding Distortion Prediction for Multi-Seam Welded Pipe Structures using Equivalent Thermal Strain Method vol.39, pp.4, 2015, https://doi.org/10.5781/jwj.2021.39.4.12