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Trans. Nonferrous Met. Soc. China 26(2016) 2433-2441 Stress based forming limit diagram for formability characterization of 6061 aluminum R. SAFDARIAN Department of Mechanical Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Khoozestan, Iran Received 8 September 2015; accepted 18 January 2016 Abstract: Two numerical criteria of forming limit diagram (FLD) criterion......
J. Cent. South Univ. (2019) 26: 1856-1862 DOI: https://doi.org/10.1007/s11771-019-4139-y A new slope optimization design based on limit curve method FANG Hong-wei(方宏伟)1,2, CHEN Yohchia(陈幼佳)3,4... Abstract: A new method is proposed for slope optimization design based on the limit curve method, where the slope is in the limit equilibrium state when the limit slope curve determined by the slip-line......
and internal cavitation needed to determine the SPF potential of a material. Key words: AA5083 aluminum alloy; superplastic forming; forming limit; cavitation 1 Introduction The superplasticity is a term... the practical forming limit of superplastic forming. A possible explanation is that the experiments are run on industrial equipment, which is hard to control for good data, and the measured grid on formed......
G. 金属板料单点渐进成形极限的数值模拟预测[J]. 机械工程学报, 2010, 46(18): 102-107.LI Lei, ZHOU Wan-lin, HUSSAIN G. Prediction of single point incremental forming limit[J]. Journal of Mechanical Engineering, 2010, 46(18..., HATTA N. Prediction of forming limit in bore-expending of sheet metals using ductile fracture criterion[J]. Journal of Material Processing Technology, 1999, 92/93: 433-438. [11] 叶 拓, 王 冠, 姚再起, 李落星. 汽车......
on neural network and genetic algorithm and forming limit prediction for sheet metal[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(2): 419-432. DOI: 10.11817/j.ysxb.1004.0609.2021-36539 随着航空...-Huh准则绘制的双拉应力状态成形极限曲线可由式(17)确定: (17) 将通过BP+GA法和D-BS+SNS2+SNS3试样组合方案得到的断裂参数分别代入式(17),得到AA7075-T6板材理论成形极限曲线(Forming limit curve, FLC)如图13所示. 图13 Lou-Huh准则AA7075-T6板材理论成形极限曲线 Fig. 13 ......
Trans. Nonferrous Met. Soc. China 22(2012) s335-s342 Experimental measurement and theoretical prediction of forming limit curve for aluminum alloy 2B06 LI Xiao-qiang, SONG Nan, GUO Gui-qiang School... and numerically evaluate the forming limit curve (FLC) of aluminum alloy 2B06. The FLC of 2B06 was measured by conducting the hemispherical dome test with specimens of different widths. The theoretical......
Trans. Nonferrous Met. Soc. China 26(2016) 736-746 Influence of material models on theoretical forming limit diagram prediction for Ti-6Al-4V alloy under warm condition Nitin KOTKUNDE1, Sashank... Abstract: Forming limit diagram (FLD) is an important performance index to describe the maximum limit of principal strains that can be sustained by sheet metals till to the onset of localized necking......
and heat affected zone metals obtained by a nanoindentation test, a theoretical calculation model was established for the forming limit diagram (FLD) of tailor-welded blanks (TWBs) on the basis... that of base materials. The theoretical calculation model offers a reliable approach to obtain the specific FLD of TWBs. Key words: tailor-welded blank; forming limit diagram; nanoindentation test; hemispherical......
Z, KUCZYNSKI K. Limit strains in the processes of stretch-forming sheet metal[J]. Int J Mech Sci, 1967, 9: 609-620. [4] GURSON A L. Continuum theory of ductile rupture by void nucleation and growth.... New ductile fracture criterion for prediction of fracture forming limit diagrams of sheet metals[J]. Int J Solids Struct, 2012, 49(25): 3605-3615. [25] LOU Y, HUH H. Extension of a shear-controlled......
Trans. Nonferrous Met. Soc. China 28(2018) 319-327 Prediction of forming limit curve for pure titanium sheet Young-Suk KIM1, Bong-Hyun LEE2, Seung-Han YANG1 1. School of Mechanical Engineering... hardening equation rather than Voce and Swift models. The forming limit curve (FLC) of CP Ti sheet as a criterion for press formability was experimentally evaluated by punch stretching test and analytically......
