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Conditions of stability loss during the test of hydraulic forming of drawpieces. Part II. Discussion and analysis of the results

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EN
Abstrakty
EN
This part of the paper contains the calculation results presented in the form of suitable diagrams and tables. The calculations were made according to the relationships obtained in Part I devoted to a laboratory test of hydraulic forming for some chosen engineering conditions of stability loss. The influence of the coefficient of material hardening, the coefficient of normal anisotropy and the coefficients of plane anisotropy on acceptable plastic strains and heights of the formed drawpieces corresponding to a given condition of stability loss was tested, too.
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Strony
928--938
Opis fizyczny
Bibliogr. 20 poz., tab., wykr.
Twórcy
  • Opole University of Technology Faculty of Applications of Chemistry and Mechanics 45-036 Opole, Luboszycka 7, POLAND
Bibliografia
  • [1] Banasiak Cz. (1971): Influence of the Anisotropy and the Hardening on the Drawability of the Steel Sheet (in Polish). – Doctor’s Thesis, Technical University of Wrocław.
  • [2] Bressan J.D. and Williams J.A. (1983): The use of shear instability criterion to predict local necking in sheet metal deformation. – International Journal of Mechanical Science, vol.25, No.3, pp.155-168.
  • [3] El-Sebaie M.G. and Mellor P.B. (1972): Plastic instability conditions in the deep-drawing of a circular blank of sheet metal. – International Journal of Mechanical Science, vol.14, pp.535-556.
  • [4] Gabryszewski Z. and Gronostajski J. (1991): Mechanics of Processes of the Plastic Forming of Metals (in Polish). – Warszawa: PWN.
  • [5] Hill R. (1986): Mathematical Theory of Plasticity. – London: Oxford, Clarendon Press.
  • [6] Hill R. (1983): On intransic eigenstates in plasticity with generalized variables. – Mathematical Proceedings of Cambrigde Philosophy and Society., vol.93, pp.177-189.
  • [7] Jentet J. (1961): Determination of the deep drawing capacity of light sheet metal on the basis of laboratory test. – Sheet Metal Industry, vol.38, No.415.
  • [8] Kaczanow L.N. (1969): Fundamentals of the Theory of Plasticity (in Russian). – Publishing House “Science” - Izdiatielstwo „Nauka”, Moskwa.
  • [9] Marciniak Z. (1968): Analysis of the Stability of the Thin-Walled Coating in the Plastics State (in Polish). – Engineering Transactions, vol.4, Warszawa.
  • [10] Marciniak Z. (1971): Limit Deformations in Sheet Metal Stamping (in Polish). – Warszawa: WNT.
  • [11] Marciniak Z. and Kuczyński K. (1967): Limit Strains in the Processes of Stretch-Forming Sheet Metal. – International Journal of the Mechanical Science, vol.9.
  • [12] Michałowski Z. (1967): The Attempt of the Drawability and Resistances to Fracture of Thin Metal Sheets by Hydraulic Method (in Polish). – Notebooks of the Institute of Aviation, vol.3, No.3.
  • [13] Moore G.G. and Wallace J.F. (1964/1965): The effect of anisotropy on instability in sheet-metal forming. – Journal of the Institute of Metals, vol.93, No.2, pp.33-38.
  • [14] Okamoto T., Matsuoka T., Mayaski Y. and Sudo C. (1968): Ductile Fracture Strains of Steel Sheet by Hydraulic Bulge Test. – La Metalurgia Italiana, No.8.
  • [15] Ostrowska-Maciejewska J., Szeptyński P. and Pęcherski R.B. (2013): Mathematical foundations of limit criterion for anisotropic materials. – Archives of Metallurgy and Materials, vol.58, No.4, pp.1223-1235.
  • [16] Pęcherski R.B. (1996): Finite deformation plasticity with strain induced anisotropy and shear banding. – Journal of Materials Processing Technology, vol.60, pp.35-44.
  • [17] Pęcherski R.B. (1998): Macroscopic effects of micro-shear banding in plasticity of metals. – Acta Mechanica, vol.131, pp.203-224.
  • [18] Szczepiński W. (1967): Introduction to Analysis of Processes of Plastic Processing (in Polish). – Warsaw: PWN.
  • [19] Śloderbach Z. and Sawicki T. (1984): Evaluation of the Spherical Cap Height in a test of Hydraulic Forming for Certain Instability Conditions (in Polish). – IFTR-PAS Reports, No.4, Warsaw.
  • [20] Życzkowski M. (1981): Combined Loading in the Theory of Plasticity. – PWN - Nijhoff, Warsaw - Alpen aan den Rijn.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f6c571d7-b982-4238-b70b-f9a3e42f0d33
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