Some phenomenological and computational aspects of sheet metal blanking simulation
作者： M Rachik , J.M Roelandt , A Maillard
DOI: 10.1016/S0924-0136(02)00460-0
关键词: Plasticity 、 Engineering 、 Numerical integration 、 Blanking 、 Experimental data 、 Constitutive equation 、 Process (computing) 、 Structural engineering 、 Convergence (routing) 、 Sheet metal
摘要: Abstract In this paper, we present a comprehensive experimental and numerical study of the sheet metal blanking process. Various tests involving different materials geometry are investigated results compared with data. For aspects study, main topics discussed constitutive model, integration algorithm mesh adaptivity. Taking into account complexity process, chose an explicit finite element code to overcome convergence problems. Our model is thus based on dynamic scheme associated ALE formulation for Since choice important achieve product shape prediction burr height estimation, compare Parndtl–Reuss plasticity Gurson–Tvergaard–Needleman coupled plasticity-damage model. The comparisons between measurements show that maximum punch force strongly related plastic flow but estimation requires damage modelling. addition, Gurson’s modified greatly improves prediction.
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