Towards better finite element modelling of elastic recovery in sheet metal forming of advanced high strength steel
- M. Safaei
- W. De Waele
Abstract
The first part of this study discusses the influence of element type on parameters such asaccuracy of the FE simulation, simulation time and convergence. Guidelines on optimal implementation ofelement types are proposed. It is shown that an inappropriate choice of element type results in difficulties inconvergence of the simulation or gives rise to problems such as shear locking in elements. In the secondpart of this study a series of finite element simulations using the Hill’48 planar anisotropic yield criterion anda standard U-shape forming test based on the NUMISHEET’93 benchmark was performed. Theeffectiveness of different isotropic hardening laws and different contact models is investigated. The mostappropriate hardening and contact definitions are defined from the viewpoint of optimal springbackprediction. Finally, the influence of the orientation of sheet strips relative to the rolling direction onspringback angles is evaluated.
How to Cite:
Safaei, M. & De Waele, W., (2011) “Towards better finite element modelling of elastic recovery in sheet metal forming of advanced high strength steel”, International Journal of Sustainable Construction and Design 2(2), 217-227. doi: https://doi.org/10.21825/scad.v2i2.20519
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