One step positive approach for sheet metal forming simulation based on quasi-conjugate-gradient method

2013 ◽  
Vol 26 (4) ◽  
pp. 730-736 ◽  
Author(s):  
Jingxin Na ◽  
Wei Chen
2013 ◽  
Vol 634-638 ◽  
pp. 2904-2908
Author(s):  
Yu Ping Zhang ◽  
Jie Wei Hong

This article puts forward One-step forming simulation method to solve blank outline problems in the process of sheet metal forming. The blank outline curve is got from the simulated analysis of Groupware of Fender by one-step simulation in Dynaform 3D software for sheet forming, considering the final shape of the workpiece. It simulates three programs via three different shapes of blanks. And it compares and analyze the FLD diagram and forming results ,and then it gets the optimized blank shape. This way guides the mould design, and save the time of repairing moulds on the basis of producing qualified products. It overcomes the puzzle how to choose the blanks’ size and shape.


2007 ◽  
Vol 2007.15 (0) ◽  
pp. 231-232
Author(s):  
Takayuki HAMA ◽  
Cristian TEODOSIU ◽  
Akitake MAKINOUCHI ◽  
Hirohiko TAKUDA

2011 ◽  
Vol 347-353 ◽  
pp. 3939-3945
Author(s):  
Jin Yan Wang ◽  
Ji Xian Sun

In most FEM codes, the isotropic-elastic & transversely anisotropic-elastoplastic model using Hill's yield function has been widely adopted in 3D shell elements (modified to meet the plane stress condition) and 3D solid elements. However, when the 4-node quadrilateral plane strain or axisymmetric element is used for 2D sheet metal forming simulation, the above transversely anisotropic Hill model is not available in some FEM code like Ls-Dyna. A novel approach for explicit analysis of transversely anisotropic 2D sheet metal forming using 6-component Barlat yield function is elaborated in detail in this paper, the related formula between the material anisotropic coefficients in Barlat yield function and the Lankford parameters are derived directly. Numerical 2D results obtained from the novel approach fit well with the 3D solution .


2006 ◽  
Vol 42 (13) ◽  
pp. 1137-1149 ◽  
Author(s):  
M.P.L. Parente ◽  
R.A. Fontes Valente ◽  
R.M. Natal Jorge ◽  
R.P.R. Cardoso ◽  
R.J. Alves de Sousa

2016 ◽  
Vol 734 ◽  
pp. 032128
Author(s):  
Vicente Mataix ◽  
Riccardo Rossi ◽  
Eugenio Oñate ◽  
Fernando G. Flores

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