Evaluation of multiaxial high-cycle fatigue criteria under proportional loading for S355 steel

• Uniaxial and multiaxial fatigue tests under proportional loading were conducted. Multiaxial high-cycle behaviour of S355 structural steel was obtained. Five different models used evaluated. The Dang Van’s multiscale approach Susmel model showed great accuracy. stresses are usually present in engineering structures often associated to failures. However, is an open topic, full questions points view. Therefore, experimental campaign uniaxial conducted aiming at evaluating the regime. evaluated, namely Sines, Findley, McDiarmid, Van Susmel-MWCM. Each them applied data mean curves obtained from it evaluated compared. coefficients each definition studied determined through methods. accuracy description steel, providing best correlation data.