Abstract: AbstractScanning electron microscope (SEM) fractographs are extensively used to analyze the ductile and ultra-low cycle fatigue fracture surfaces of structural steel. However, the two-dimensional (2D) nature of SEM images ...

Abstract: AbstractAxisymmetric circumferentially notched tension specimens with varying levels of triaxiality were subjected to monotonic tensile and ultralow-cycle-fatigue (ULCF) loading regimes. Scanning electron microscopy was ...

Abstract: The seismic collapse behavior of 4-story and 8-story steel special moment frames (SMFs) with deep columns is investigated using computational simulation. The models used are capable of modeling local and global instabilities ...

Abstract: The collapse behavior of individual deep columns subjected to realistic loading and boundary conditions is investigated in this study. Loading protocols that are representative of seismic demands on first-story columns are ...