A New Approach to Identify the Ductile Damage Constants of Seamed Metallic Tube Using Hydro-Bulging Process

Authors

Abstract

In present research, the numerical and experimental investigation of progressive ductile damage has been conducted in free bulging of 304 stainless steel seamed tube using oil pressure. In the numerical section, using the Lagrangian finite element method with ABAQUS/Explicit solver, the seam weld simulated as a thin strip, contains non-homogeneity factors of strength and formability. Forming Limit Diagram (FLD) criterion was used as a measure of damage initiation, as well as effective plastic displacement factor with linear approach in order to model damage evolution. In the experimental section, tensile test of tube has been conducted to attain mechanical properties and also tube free bulging has been perform. Maximum bulging diameter of tube and critical pressure were recorded at the moment of bursting. In numerical analysis, the effect of material non-homogeneity factor on critical pressure, also the outcome of effective plastic displacement on the maximum bulging diameter investigated and compared with experiments. Finally, the optimum values of non-homogeneity factor and effective plastic displacement obtained respectively equal to 0.9 and 0.05 Using these factors, the accuracy of numerical prediction for tube diameter and oil pressure at bursing moment were more than 99%.

Keywords

Main Subjects

References

[1]  Kalpakjian S, Schmid SR (2006) Manufacturing engineering and technology. 5th edn. Prentice Hall.
[2]  Kim J, Kang SJ, Kang BS (2003) A prediction of bursting failure in tube hydroforming processes based on ductile fracture criterion. The Int J of Adv Manu Tech 22: 357-362.
[3]  Butcher C, Chen Z, Bardelcik A, Worswick M (2009) Damage-based finite-element modeling of tube hydroforming. Int J of Frac 155: 55-65.
[4]  Chen X, Yu Z, Hou B, Li S, Lin Z (2011) A theoretical and experimental study on forming limit diagram for a seamed tube hydroforming. J of Mat Proc Tech  211: 2012-2021.
[5]  Solhjoei N, Ghazavi H (2012) Prediction of Rupture Using Ductile and MSFLD Damage in T-Shape Tube Hydro-Forming Process. Int J Adv Des and Manu Tech 5: 53-60.
[6]  Li H. Y, Wang X. S, Yuan S. J, Miao Q. B, Wang Z. R (2004) Typical stress states of tube hydroforming and their distribution on the yield ellipse. J of Mat Proc Tech 151: 345-349.
[7]  گردویی م، امیرعبدالهیان ش (1390) بررسی عددی ناپایداری پلاستیک در فرآیند هیدروفرمینگ لوله. پنجمین کنفرانس شکل دهی فلزات و مواد ایران. تهران. دانشگاه شریف.
[8]  Abaqus Reference Manual.
[9]  Makkouk R, Bourgeois N, Serri J, Bolle B, Martiny M, Teaca M (2008) Experimental and theoretical analysis of the limits to ductility of type 304 stainless steel sheet. Eur J of Mech 27: 181-194
Journal of Solid and Fluid Mechanics
Volume 5, Issue 2 - Serial Number 2
July and August 2015
Pages 139-151

Files

Share

How to cite

Statistics