Flange earing and its control on deepdrawing of anisotropy circular sheets |
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Authors: | Liu Yuqi Hu Ping and Liu Junhua |
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Institution: | (1) Institute of Automobile Panel Forming Technique, Jilin University of Technology, 130025 Changchun, China |
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Abstract: | The Hill's quadric anisotropy yield function and the Barlat-Lian anisotropy yield function describing well anisotropy sheet
metal with stronger texture are introduced into a quadric-flow corner constitutive theory of elastic-plastic finite deformation
suitable for deformation localization analysis. And then, the elastic-plastic large deformation finite element formulation
based on the virtual power principle and the discrete Kirchhoff shell element model including the yield functions and the
constitutive theory are established. The focus of the present research is on the numerical simulation of the flange earing
of the deep-drawing of anisotropy circular sheets, based on the investigated results, the schemes for controlling the flange
earing are proposed.
Supported by NSFC(No. 19832020) and National Automobile Dynamic Simulation Laboratory of China. |
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Keywords: | elastic-plastic large deformation discrete Kirchhoff shell element anisotropy yield function deep-drawing circular sheet flange earing |
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