An Experimental Study on the Deformation Behavior of SS304 Stainless Steel UnderNonproportional Cyclic Stress and Strain at Room Temperature
304不锈钢在室温下非比例应力和应变循环变形行为实验研究

Under several nonproportional cyclic elliptic and rhombic paths with different ratios between the lengths of long axes and the short axes, the effects of the path shapes of the cyclic strain and cyclic stress, the equivalent stress and strain amplitudes for the paths, the mean strain and their loading history on the nonproportional cyclic deformation behavior were experimentally investigated for SS304 stainless steel at room temperature. The experimental study shows that the cyclic plastic behavior of SS304 stainless steel depends strongly on the path shapes of the cyclic strain and cyclic stress, the equivalent stress and strain amplitudes for the paths and their loading history.