HIGH TEMPERATURE LOW CYCLE BIAXIAL FATIGUE OF TWO STEELS

Abstract

Abstract— Biaxial low cycle fatigue tests at various temperatures and strain rates were performed on 1% Cr‐Mo‐V steel and AISI 316 stainless steel under combined torsional and axial loads. A correlation for fatigue strength has been derived, and it is also shown that if the Gough ellipse quadrant criterion is rephrased in terms of strain amplitudes, it may be used as a safe design rule for ductile metals in both the low and high cycle fatigue regimes.