Model of plastic anisotropy evolution with texture-dependent yield surface |
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| Affiliation: | 1. Institute of Fundamental Technological Research PAS, Świętokrzyska 21, 00 049 Warsaw, Poland;2. Department of Applied Mechanics, Faculty of Mechatronics, Warsaw University of Technology, Chodkiewicza 8, 02 525 Warsaw, Poland;1. AGH University of Science and Technology, Kraków, Poland;2. Institute for Ferrous Metallurgy, Gliwice, Poland;1. School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia;2. School of Mechatronics Engineering, Harbin Institute of Technology, PR China |
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| Abstract: | Model of evolution of plastic anisotropy due to crystallographic texture development, in metals subjected to large deformation processes, is presented. The model of single grain with the regularized Schmid law proposed by Gambin is used. Evolution of crystallographic texture during drawing, rolling and pure shear is calculated. Phenomenological texture-dependent yield surface for polycrystalline sheets is proposed. Evolution of this yield surface is compared with evolution of phenomenological higher order yield surfaces proposed by Hill and Barlat with Lian for drawing, rolling and pure shear processes. The change of the Hill yield surface and the Barlat–Lian yield surface is obtained by replacing material parameters present in these conditions by texture-dependent functions. |
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