On the forming and fracture limits of sheet metals
Antti S. Korhonen1
, Timo Manninen2, Jeong-Whan Yoon3
1Department of Materials Science and Engineering, Helsinki University of Technology.
2Outokumpu Stainless Oyj, Tornio Research Center.
3Alcoa Technical Center, Division of Materials Science.
DOI:
https://doi.org/10.7494/cmms.2009.1.0220
Abstract:
The forming and fracture limits of stainless steel and aluminum were studied. Hydraulic bulge testing was employed in the stretch forming experiments. Marciniak-type in-plane tests and tensile testing were carried out to study the limit strains in the deep drawing region. Both screen-printed and laser-marked grids were used to measure the surface strains. Scanning electron microscopy was employed to measure the thickness strains and to study the fracture surfaces.
Cite as:
Korhonen, A., Manninen, T., Yoon, J., (2009). On the forming and fracture limits of sheet metals. Computer Methods in Materials Science, 9(1), 143 – 147. https://doi.org/10.7494/cmms.2009.1.0220
Article (PDF):

Keywords:
Forming limits, Fracture, Aluminum, Stainless steel
References:
Arrieux, R., Bedrin, C. and Boivin, M., Determination of an intrinsic forming limit stress diagram for isotropic metal sheets, 12th Biennial Meeting of the International Deep Drawing Research Group, May 24-28, 1982, S. Margherita Ligure, Italy, Working Group Meetings, WG I, 1982, 61-71.
Barlat, F., Material modelling for sheet metal forming simulations, Proceedings of the Numisheet 2008, ed. Hora P., Interlaken, September 1 – 5, 2008, Part A, 27-36.
Gensamer, M., 1946, Strength and ductility, Trans. Am. Soc. Metals, 36, 2008, 30-60.
Korhonen, A.S., Localization of Plastic Flow and Ductile Fracture in Metals, Acta Polytechnica Scandinavica. Ch, 144, 1980, 33.
Korhonen, A.S., Manninen, T., Forming and fracture limits of austenitic stainless steel sheets, Materials Science and Engineering A, 488, 2008, 157-166.
Lankford, W.T., Low, J.R. and Gensamer, M., The Plastic Flow of Aluminum Sheet Under Combined Loads, Trans. AIME, 171, 1947, 574-604.
Makinouchi, A., Teodosiu, C. and Nakagawa, T., Advance in FEM Simulation and its Related Technologies in Sheet Metal Forming, Annals of the CIRP 47, 2, 1998, 641-649.
prEN ISO 12004-2, 2008, Metallic materials. Sheet and strip. Determination of forming-limit curves. Part 2: Determination of forming-limit curves in the laboratory (ISO/FDIS 12004-2:2008)
Slota, J., Spišák, M., Comparison the forming – limit diagram (FLD) models for drawing quality (DQ) steel sheets, METABK 44, 4, 2005, 249-253.
Wu, P.D., Jain, M., Savoie, J., McEwen, S.R., Tugcu, P., Neale, K.W., Evaluation of anisotropic yield functions for aluminium sheets, International Journal of Plasticity, 19, 2003, 121-138.
Yoon, J. W., Dick, R.E., Barlat, F., Hong, S.H., On the Use of Stress-Based Forming Limit Curve for Forming and Fracture, Proc. of the ICTP 2008, TB3-1, 2008, 708-722.