Implementation of Weibull Stress to Fracture Assessment Standards

This paper describes the fracture assessment standards developed in Japan. The outline of ISO 27306 is given, where an equivalent CTOD concept is standardized at the same Weibull stress level for the fracture toughness specimen and tension components. The equivalent CTOD is implemented into WES 2808 for assessing the fracture performance of beam-to-column connections subjected to large dynamic and cyclic strain during earthquake.