An approach for reduction of the volume loss in the rigid-plastic FEM using two-step updating procedure (CROSBI ID 172925)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Vlak, Frane ; Cvitanić, Vedrana ; Vučina, Damir
engleski
An approach for reduction of the volume loss in the rigid-plastic FEM using two-step updating procedure
The volume loss, as a direct consequence of the geometry updating procedure used in the conventional penalty rigid-plastic finite element method (RPFEM), is primarily caused by the application of the widely used forward Euler time integration method. In order to decrease this undesired consequence, the combination of the two-step Adams-Bashforth time integration method and the volumetrically elastic & deviatorically RPFEM is proposed as a new approach. The cylinder upsetting process was simulated using in-house finite element code. The results of simulations, obtained for the various levels of friction factors and height reductions, show that the proposed method gives a significantly lower volume loss. Also, the results of the friction factor determination procedure utilizing the ring compression test for three lubrication conditions demonstrate the capabilities of the proposed method.
volume loss; rigid-plastic finite element method; time integration; bulk metal forming
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Podaci o izdanju
53 (10)
2011.
839-845
objavljeno
0020-7403
10.1016/j.ijmecsci.2011.07.004
Povezanost rada
Strojarstvo, Temeljne tehničke znanosti