Cyclic Void Growth Model to Assess Ductile Fracture Initiation in Structural Steels due to Ultra Low Cycle Fatigue

Guidelines for nonlinear structural analysis and design of buildings. part IIa - steel moment frames

“…These are for cases where the steel material has reasonable fracture toughness (e.g., Charpy V-Notch toughness on the order of 40 ft-lb or greater at the expected ambient temperature of the steel). While these strain limits should be reasonably conservative for most cases, there is certainly room to apply more detailed methods to assess fracture in continuum finite element analyses (e.g., Smith et al, 2017;Kanvinde and Deierlein, 2007). …”

Optimum drilled flange moment resisting connections for seismic regions

“…Since the loading protocol used for the analytical studies was cyclic, the larger value of RI in compression and tension was considered as the rupture index for each load cycle (or storey drift angle). In general, locations with higher values of RI have a greater potential for fracture and failure [8,28,29]. In the presence of a crack or defect, a large tensile hydrostatic stress can also produce large stress intensity factors at the tip of the crack and increase the likelihood of brittle fracture [29].…”

High cycle fatigue simulation: A new stepwise load-advancing strategy

“…When looking at the phenomenon from the microscale, it can be seen that a large amount of the material internal energy is spent in a rearrangement of its internal structure to accommodate better the cyclical load, followed by the gliding of the interatomic planes phase. Metal grains suffer plastic slip and non-linear behaviour [1], and these irreversible processes are responsible for crack initiation under cyclic loading.…”