Necking Prediction in Tube Hydroforming by Stress-Based Forming Limit Diagrams

Abstract:

Path-independent stress based forming limit diagrams for anisotropic materials along with the Hill 48 yield function; power law strain hardening and isotropic hardening are derived. Bifurcation analyses via solving equilibrium equations of a pointed vertex on subsequent yield loci are utilized. The presented practical forming limit diagrams (FLSDs) show more acceptable agreements with experimental data compared with those obtained by other methods. A typical neck detection macro in APDL is developed by FEA simulation for a free bulge tube hydroforming to confirm the significant simplicity and straightforwardness of the mentioned FLSD.

• Periodical: Key Engineering Materials (Volumes 462-463)
• Pages: 284-288
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.462-463.284
• Online since: January 2011
• Authors: A. Jaamialahmadi, Mehran Kadkhodayan
• Keywords: Anisotropy, Bifurcation Analysis, FLSD, Hill 48, Neck Initiation, Swifit, Tube Hydro Forming

References

[1] B.S. Levy, C.J.V. Tyne, J.M. Stringfield: Journal of Materials Processing Technology Vol. 150 (2004), p.280.

[2] Y.M. Hwang, Y.K. Lin and T. Altan: International Journal of Machine Tools & Manufacture Vol. 47 (2007), p.343.

[3] Y. Lianfa and G. Cheng: Thin-Walled Structures Vol. 46 (2008), p.147.

[4] Li Shu-Hui, Y. Bing, Z. Wei-gang and L. Zhong-Qin: Materials and Design Vol. 29 (2008), p.1110.

[5] J.C. Lin: Finite Elements in Analysis and Design Vol. 39 (2003), p.445.

[6] A. Aydemir, J.H.P. de Vree, W.A.M. Brekelmans, M.G.D. Geers, W.H. Sillekens and R.J. Werkhoven: Journal of Materials Processing Technology Vol. 159 (2005), p.303.

DOI: 10.1016/j.jmatprotec.2004.05.018

[7] Y. Aue-U-Lan, G. Ngaile and T. Altan: Journal of Materials Processing Technology Vol. 146 (2004), p.137.

[8] K.J. Fann and P.Y. Hsiao: Journal of Materials Processing Technology Vol. 140 (2003), p.520.

[9] L.P. Lei, B.S. Kang, S.J. Kang: rion, L.P. Lei, B.S. Kang and S.J. Kang: Journal of Material Processing Technology Vol. 113 (2001), p.673.

[10] J. Kim, S.W. Kim, W.J. Song and B.S. Kang: International Journal of Mechanical Sciences Vol. 46 (2004), p.1535.

[11] J. Kim, B.S. Kang, S.M. Hwang, H.J. Park: Journal of Materials Processing Technology Vol. 153–154 (2004), p.544.

[12] J. Kim, S.W. Kim, W.J. Song and B.S. Kang: International Journal of Mechanical Sciences Vol. 47 (2005), p.1023.

[13] R. Hshemi, A. Assempour and E.M.K. Abad: Materials and Design Vol. 30 (2009), p.3545.

[14] C.H.M. Simha, J. Gholipour, A. Bardelcik and M.J. Worswick: Transactions of the ASME Vol. 129 (2007), p.36.

[15] A. Jaamialahmadi and M. Kadkhodayan: submitted to Journal of Applied Mechanics of ASME (2009).

[16] A. Jaamialahmadi and M. Kadkhodayan: submitted to Journal of Applied Mechanics of ASME (2010).

[17] T.B. Stoughton and X. Zhu: International Journal of Plasticity Vol. 20 (2004), p.1463.

[18] M.C. Butuc, J.J. Gracio and A.B. da Rocha: International Journal of Mechanical Sciences Vol. 48 (2006), p.414.

[19] X.H. Zhu, K. Weinmann and A. Chandra: Journal of Engineering Materials and Technology Vol. 123 (2001), p.323.