The fracture behaviour of a round pipe with a circular-arc circumferential notch is analysed in the case of tension and bending loading , by assuming that an elliptical-arc external surface crack exists at the notch root. The stress concentration factor (SCF) is determined through theoretical expressions and a finite element analysis. Then, the stress-intensity factor (SIF) along the surface crack front is computed for four values of the dimensionless notch radius. The effect of stress concentration is discussed for both thick- and thin-walled pipes.
Circumferentially notched pipe with an external surface crack under tension and bending / CARPINTERI, Andrea; BRIGHENTI, Roberto; VANTADORI, Sabrina. - 1:(2002), pp. 393-400. (Intervento presentato al convegno 14th European Conference on Fracture (ECF 14) tenutosi a Cracovia, Polonia nel 8th-13th September 2002).
Circumferentially notched pipe with an external surface crack under tension and bending
BRIGHENTI, Roberto;
2002
Abstract
The fracture behaviour of a round pipe with a circular-arc circumferential notch is analysed in the case of tension and bending loading , by assuming that an elliptical-arc external surface crack exists at the notch root. The stress concentration factor (SCF) is determined through theoretical expressions and a finite element analysis. Then, the stress-intensity factor (SIF) along the surface crack front is computed for four values of the dimensionless notch radius. The effect of stress concentration is discussed for both thick- and thin-walled pipes.
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