Acta Mechanica Slovaca 2011, 15(1):22-27 | DOI: 10.21496/ams.2011.003

Instantaneous Plastic Flow Properties of Thin Brass Sheets Under Uniaxial and Biaxial Testing

Feliks Stachowicz

In the prediction of formability of sheet metals, it is necessary to determine material properties which are normally evaluated on the data obtained by performing simple tests. The most important parameters affecting the value of limit strains of a sheet metal are the strain hardening exponent (n) and plastic anisotropy ratio (r). It was established that especially the value of n-parameter of brass sheets strongly depend on the specimen elongation and stress/strain state. The effect of instantaneous (differential) nt - value and rt - value on the forming limit curve was computed theoretically.

Keywords: Plastic Anisotropy, Strain Hardening, Strain State, Forming Limit, Sheet Metal

Published: March 31, 2011  Show citation

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Stachowicz, F. (2011). Instantaneous Plastic Flow Properties of Thin Brass Sheets Under Uniaxial and Biaxial Testing. Acta Mechanica Slovaca, 15(1), 22-27. doi: 10.21496/ams.2011.003
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    References

    1. Pereira I.M., Rubim G., Acselrad O., Cetlin P.R., Comparison of the experimental and the numerically predicted mechanical damage in the sheet forming of steel, Journal of Materials Processing Technology, vol. 203, 2008, p. 13-18 Go to original source...
    2. Doucet A.B., Wagoner R.H., Transient tensile behavior of Intersitial-Free steel and 70/30 brass following plane-strain deformation. Metallurgical Transactions, vol. 20A, 1989, p.1483-1493 Go to original source...
    3. Vial C., Yield locus of 70-30 brass sheets, International Journal of Mechanical Science, vol. 30, No. 2, 1988, p. 137-145 Go to original source...
    4. Shi M.F., Strain hardening and forming limits of automotive steels, SAE Transactions, vol.104, 1995, p. 571-577 Go to original source...
    5. Mahmudi R., Stress-state dependence of work-hardening behavior in aluminium alloy sheet, Journal of Materials Processing Technology, vol. 72, 1997, p. 302-307 Go to original source...
    6. An Y.G., Vegter H., Elliot L., A novel and simple method for the measurement of plane strain work hardening, Journal of Materials Processing Technology, vol. 155-156, 2004, p. 1616-1622 Go to original source...
    7. Slota J., Spi¹ak E., Determination of flow stress by the hydraulic bulge test, Metalurgija, vol. 47, no. 1, 2008, p. 13-17
    8. Dournaux J.L., Bouvier S., Aouafi A., Vacher P., Full-field measurement technique and its application to the analysis of materials behaviour under plane strain, Materials Science and Engineering A, vol. A 500, 2009, p. 47-62 Go to original source...
    9. Stachowicz F., On the mechanical and geometric inhomogeneity and formability of aluminium and aluminium alloy sheets. Archives of Metallurgy, vol. 41, no. 1, 1996, p. 61-75
    10. Ghosh A.K. Plastic flow properties in relation to localized necking in sheets. In D.P. Koistinen & N-M. Wang (ed.), Mechanics of sheet metal forming, Plenum Press. New York 1978, p. 287-312 Go to original source...
    11. Rao K.P., Mohan E.V.R., A unified test for evaluating material parameters for use in the modelling of sheet metal forming, Journal of Materials Processing Technology, vol. 113, 2001, p. 725-731 Go to original source...
    12. Chamanfar A., Mahmudi R., Compensation of elastic strains in the determination of plastic strain ratio (R) in sheet metals, Materials Science and Engineering A, vol. A 397, 2005 Go to original source...
    13. Welch P.I., Ratke L., Bunge H-J., Consideration of anisotropy parameters in polycrystalline metals, Zeitschrift für Metallkunde, vol. 74, 1983, p. 233-237 Go to original source...
    14. Hill R., J.W. Hutchinson, Instantaneous hardening in sheet metal under biaxial loading: A theoretical framework, Journal of Applied Mechanics, vol. 59, 1992, p. S1-S9 Go to original source...
    15. Ding Hao, Ding Hua, Song D., Tang Z., Yang P., Strain hardening behavior of a TRIP/TWIP steel with 18,8% Mn, Materials Science and Engineering A, vol. A 528, 2011, p. 868-873 Go to original source...
    16. Gracio J.J., Fernandez J.V., Schmitt J.H., Effect of grain size on substructural evolution and plastic behavior of copper. Materials Science and Engineering A, vol. A 118, 1989, p. 97-105 Go to original source...
    17. Marciniak Z., Kuczyński K., Limit strain in the process of stretch forming of sheet metals, International Journal of Mechanical Science, vol. 9, No, 1967, p. 609-624 Go to original source...
    18. Stachowicz F., Effect of material inhomogeneity on forming limits of 85-15 brass sheets, Archives of Metallurgy, vol. 36, no. 2, 1991, p. 223-242

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