抄録
An experimental investigation has been performed on very low-cycle fatigue failure of steel angles under repeated loading. The objective of this study is to extract decisive factors causing cracks and rupture in the course of loading repetitions of the order of a few to twenty cycles. Visible cracks were initiated on the concave side of the bending deformation when it was stretching. Energy dissipation capacity depends heavily on the entire history of loading, failure mode, slenderness ratio and width-to-thickness ratio. Residual strains at the outbreak of a crack were of the order of 25〜40 %, irrespective of the test parameters.
