DETERMINE THE FATIGUE LIFETIME FOR ALUMINIUM ALLOY EN AW 2007.T3 DURING CYCLIC BENDING – TORSION LOADING UNDER IN-AND-OUT OF PHASE SHIFT Φ = 0° AND Φ = 90° USING SELECTED FATIGUE CRITERIA
The article deals with determining of fatigue lifetime of aluminium alloy EN AW 2007.T3 during by multiaxial cyclic loading. The theoretical part deals with the fatigue and with the criteria for evaluation of multiaxial fatigue lifetime, in region low-cycle and high-cycle fatigue. The experimental part deals with modeling of combined bending – torsion loading and determining the number of cycles to fracture in region low-cycle and high-cycle fatigue and also during of loading with the sinusoidal wave form under in phase φ = 0° and out phase φ = 90°.