Considering characteristics of PWSCC’s propagation behavior of the dissimilar welding joint of the safe end nozzles, an axial crack was modeled in a FE (Finite Element) model as a rectangular shape with larger aspect ratio. The stress intensity factors at the deepest point of the crack were calculated with change of crack depth. Using the influence coefficients, the simplified equation of stress intensity factor with parameters of radius/thickness and thickness/weld width was proposed. The contents of this paper is revised from the paper already presented [1] by further investigation for the shallow cracks with less than 20% thickness.
Volume Subject Area:
Design and Analysis
Topics:
Pipes,
Stress,
Welded joints,
Fracture (Materials),
Finite element analysis,
Nozzles,
Shapes,
Welding
This content is only available via PDF.
Copyright © 2009
by ASME
You do not currently have access to this content.
