TY - JOUR A1 - Madia, Mauro A1 - Zerbst, Uwe T1 - Application of the cyclic R-curve method in notch fatigue analysis T2 - International Journal of Fatigue N2 - The paper deals with the prediction of the fatigue Limit of notched specimens. Some authors in the literature have shown that this issue can be solved by employing an approach based on critical distances, others used elastic fracture mechanics. In this paper the fatigue limit of notched specimens is given by the non-propagating condition of mechanically small surface cracks. According to the so-called cyclic R-curve method, the crack driving force of a growing small crack is compared to its resistance force, which incorporates the gradual build-up of crack closure. The fatigue limit is determined by that applied nominal stress, for which the tangency condition of crack driving and resistance force is satisfied. The approach has been modified to incorporate plasticity effects in the mechanically short crack Regime and it has been applied to a mild and a high-strength steel, in case of an infinite plate with circular hole under remote tensile stress. The method has been successfully applied to the evaluation of fatigue notch-sensitivity in case of surface roughness. PB - Elsevier Ltd. CY - Oxford, UK KW - Notch fatigue KW - Notch sensitivity KW - Cyclic R-curve KW - Non-propagating cracks KW - Critical distance PY - 2016 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/35298 AN - OPUS4-35298 SN - 0142-1123 VL - 82 IS - 1 SP - 71 EP - 79 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany