Solutions of T-stresses for quarter-elliptical corner cracks in finite thickness plates subject to tension and bending

摘要: Abstract The non-singular terms in the series expansion of elastic crack-tip stress fields, commonly referred to as T -stresses, play an important role fracture and fatigue problems where a single mechanics parameter such intensity factor K or J -integral cannot completely characterize crack tip states. In addition analysis, elastic–plastic -stresses provide effective two-parameter characterization constraint levels vicinity crack. A quarter-elliptical corner finite thickness plate is representative model for many cracks engineering components, found weld toes, rivet holes nozzle areas pressure vessels. this paper, three-dimensional element analyses are conducted calculate with wide range aspect ratios relative depths. Both remote tension bending loads considered. For applications, empirical equations at two points near free surfaces also presented. When combined solutions , these suitable constraint-based analysis components.