Micro- and Macro-Scale Characterization of Fatigue Damage Behavior in Metallic Materials Under Constant and Variable Amplitude Multiaxial Loading

Engineering materials and structures undergo a wide variety of multiaxial fatigue loading conditions during their service life. Some of the most complex multiaxial loading scenarios include proportional/non-proportional loading, mix-mode loading, overload/underload, etc. Such loadings are often experienced in many critical applications including aircraft, rotorcraft, and wind turbines.