| 書目名稱 | Plasticity and Textures | | 編輯 | Wiktor Gambin | | 視頻video | http://file.papertrans.cn/750/749232/749232.mp4 | | 圖書封面 |  | | 描述 | The classical, phenomenological theory of plastically anisotropic materials has passed a long way: from the work of von Mises presented in 1928, and the HilI formulation given in 1948, to the latest papers on large elastic-plastic deformations of anisotropic metal sheets. A characteristic feature of this approach is a linear flow rule and a quadratic yield criterion. Mathematical simplicity of the theory is a reason of its numerous applications to the analysis of engineering structures during the onset of plastic deformations. However, such an approach is not sufficient for description of the metal forming processes, when a metal element undergoes very large plastic strains. If we take an initially isotropic piece of metal, it becomes plastically anisotropic during the forming process, and the induced anisotropy progressively increases. This fact strongly determines directions of plastic flow, and it leads to an unexpected strain localization in sheet elements. To explain the above, it is necessary to take into account a polycrystalline structure of the metal, plastic slips on slip systems of grains, crystallographic lattice rotations, and at last, a formation of textures and their | | 出版日期 | Book 2001 | | 關(guān)鍵詞 | Metall; crystal; deformation; kinematics; metal; model; plasticity | | 版次 | 1 | | doi | https://doi.org/10.1007/978-94-015-9763-0 | | isbn_softcover | 978-90-481-5912-3 | | isbn_ebook | 978-94-015-9763-0 | | copyright | Springer Science+Business Media Dordrecht 2001 |
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