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Limitation of the Experimental Yield Loci for Dual Phase Steel Sheet and its Comparison with Theoretical Results for Original and New Hill Theories

Author : Mohammad Humid J.Mahboba

Pages : 3574-3578
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In this research the dual phase steel was produced from low carbon steel 0.1٪C, Then ,real yield behavior for dual phase steel was studied by object sheets metal for different stresses (simple tension stress , balance biaxial tension , plan strain compression). The experimental results for yield loci compared with the original and new Hill’s theories, also from this comparison , it was found the new Hill theory gave a good approach with experimental results at (m = 1.8). Moreover increasing the volume of yield Locus with an increase of pre-strain values was done in this research. The results showed that the yield stress in plan – strain compression were higher than the yield stresses in balanced biaxial tension and the later were higher than the yield stresses in a simple tension.

Keywords: Yield loci, Dual phase steel, Hill theories, Plane-Strain

Article published in International Journal of Current Engineering and Technology, Vol.4, No.5 (Oct-2014)


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