Deformation Characteristic Analysis on Air Bending in JCO Forming of Large Diameter Welding Pipe

Abstract:

JCO forming is one of manufacture mode widely used in production of large diameter submerged-arc welding pipes, in which JCO forming process is progressive multi-step air bending. In order to improve JCO forming quality, it is necessary to analysis deformation characteristic of air bending. So, air bending is analyzed using finite element method. Taking the air bending of X80 steel Φ1219mm×22mm×12000mm welding pipe for instance, the air bending is simulated by finite element (FE) code ABAQUS. In this paper, the simulation data is validated by experiments and a comparison showed a good agreement with experiments results. The stress/strain from simulation is discussed. Thus, the results of research provides a basis to improve JCO forming quality.

• Periodical: Applied Mechanics and Materials (Volume 623)
• Pages: 113-116
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.623.113
• Online since: August 2014
• Authors: Li Feng Fan*, Ying Gao, Jia Xin Yan, Jian Bin Yun
• Keywords: Air Bending, Deformation Characteristic, Finite Element Method (FEM), JCO Forming, Welding Pipe

References

[1] Gau J T, Kinzel G L. An experimental inverstigations of the influence of the Bauschinger effect on springback predictions[J]. Journal of Materials Processing Technology, 2001, 108: 369-375.

DOI: 10.1016/s0924-0136(00)00834-7

[2] Thomson P F, Kim J K. Springback and side-wall curl of Galvanized and Galvalume steel sheet[J]. Journal of Mechanical Working Technology, 1989, 19: 233-238.

DOI: 10.1016/0378-3804(89)90006-5

[3] Livatyali, H., Wu H.C., Altan T. Prediction and elimination of springback in straight flanging using computer-aided design methods[J]: Part 2: FEM predictions and tool design. Journal of Materials Processing Technology, 2002, 120(1-3): 348-354.

DOI: 10.1016/s0924-0136(01)01161-x

[4] R. Hill. The Mathematical Theory of Plasticity. Oxford, London, (1950).

[5] W. JOHNSON and T. X. Yu. Springback after the biaxial elastic-plastic pure bending of a rectangular plate—Ⅰ[J]. International journal of mechanical sciences, 1981, 23: 619-630.

DOI: 10.1016/0020-7403(81)90042-4

[6] T.X. Yu, W. JOHNSON. The large elastic-plastic deflection with springback of a circular plate subjected to circumferential moments[J]. Journal of applied mechanics, 1982, 49: 507-515.

DOI: 10.1115/1.3162490

[7] Ahmad S, Irons BM, Zienkiewicz OC. Analysis of thick and thin shell structures by curved finite elements[J]. International Journal for Numerical Methods in Engineering, 1970, 2: 419-451.

DOI: 10.1002/nme.1620020310

[8] Büchter N et al. Three dimensional extension of non-linear shell formulation based on the enhanced assumed strain concept[J]. International Journal for Numerical Methods in Engineering, 1994, 7: 2551-2568.

DOI: 10.1002/nme.1620371504

[9] Sansour C. A theory and finite element formulation of shells at finite deformation involving thickness change[J]. Archive of Applied Mechanics, 1995, 65: 194-216.

DOI: 10.1007/s004190050012