Effect of prestrain paths on mechanical behavior of dual phase sheet steel

The tensile and fatigue performance of dual phase (DP600) sheet steel was investigated with specimens, as-received, and with two different prestrain path conditions, uniaxial and plane strain. First, tensile tests of the as-received condition of DP600 were performed to obtain mechanical properties, specifically the uniform elongation, for determining the prestrain levels of the specimens. Then three prestrain levels from each strain path were...