A multi-deformable bodies solution method coupling finite element with meshless method in sheet metal flexible-die forming

In this paper, a multi-deformable bodies solution method which includes both sheet metal elastoplastic deformation and bulk deformation of pressure-transmitting medium (PTM) in sheet metal flexible-die forming was proposed. The elastoplastic deformation of sheet metal was analyzed with finite elemen...

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Veröffentlicht in:Procedia engineering Jg. 207; S. 1641 - 1646
Hauptverfasser: Yuan, Binxian, Wang, Zhongjin
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 2017
Schlagworte:
coupling
finite element method
meshless method
sheet metal flexible-die forming
meshless method
coupling
finite element method
sheet metal flexible-die forming
ISSN:1877-7058, 1877-7058
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Zusammenfassung:In this paper, a multi-deformable bodies solution method which includes both sheet metal elastoplastic deformation and bulk deformation of pressure-transmitting medium (PTM) in sheet metal flexible-die forming was proposed. The elastoplastic deformation of sheet metal was analyzed with finite element method (FEM), and the bulk deformation of PTM was analyzed with a meshless method, called element-free Galerkin method (EFGM). Aiming at the coupled deformation characteristics and strong nonlinear features between sheet metal/FEM and PTM/EFGM, a node-to-point contact method based on slave-master concept was employed to treat the frictional contact between these two deformable bodies. A numerical example of sheet metal flexible-die forming was presented to demonstrate the effectiveness of the proposed method.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2017.10.1092