In the present paper, fatigue crack propagation in V-notched round bars under cyclic eccentric axial loading is numerically evaluated using both a finite element analysis and an automated numerical model proposed by the first author. The stressintensityfactors are computed at a set of points on the crack front by the finite element method. Then, a suitable fatigue crack growth law is applied to the above set of points. By varying the loading eccentricity value and the notch root geometry, severalinitial semi-elliptical surface crack configurations are analysed.

Fatigue Resistant Design of Round Bars Weakened by a V-Shaped Circumferential Notch

RONCHEI, Camilla;
2014

Abstract

In the present paper, fatigue crack propagation in V-notched round bars under cyclic eccentric axial loading is numerically evaluated using both a finite element analysis and an automated numerical model proposed by the first author. The stressintensityfactors are computed at a set of points on the crack front by the finite element method. Then, a suitable fatigue crack growth law is applied to the above set of points. By varying the loading eccentricity value and the notch root geometry, severalinitial semi-elliptical surface crack configurations are analysed.
eccentric axial loading; semi-elliptical surface crack; V-notched round bar
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/304674
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