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Simplified model for the fatigue growth analysis of surface cracks in round bars under mode I

Couroneau, N. / Royer, J.

The fatigue growth of an edge flaw in a round bar under cyclic tension or bending loading is examined, using a two-parameter numerical model. First, it is shown that the crack front evolution is defined by a very small number of parameters, which varies during crack growth. Approximated solutions for both the crack propagation path and the stress intensity factor are derived, and the fatigue predictions using this simple analytical method are finally compared with the numerical results.

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Simplified model for the fatigue growth analysis of surface cracks in round bars under mode I

Couroneau, N. / Royer, J.

The fatigue growth of an edge flaw in a round bar under cyclic tension or bending loading is examined, using a two-parameter numerical model. First, it is shown that the crack front evolution is defined by a very small number of parameters, which varies during crack growth. Approximated solutions for both the crack propagation path and the stress intensity factor are derived, and the fatigue predictions using this simple analytical method are finally compared with the numerical results.

Simplified model for the fatigue growth analysis of surface cracks in round bars under mode I

Couroneau, N. / Royer, J.

The fatigue growth of an edge flaw in a round bar under cyclic tension or bending loading is examined, using a two-parameter numerical model. First, it is shown that the crack front evolution is defined by a very small number of parameters, which varies during crack growth. Approximated solutions for both the crack propagation path and the stress intensity factor are derived, and the fatigue predictions using this simple analytical method are finally compared with the numerical results.

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Title:

Simplified model for the fatigue growth analysis of surface cracks in round bars under mode I

Contributors:

Couroneau, N. (author) / Royer, J. (author)

Published in:

International Journal of Fatigue ; 20 ; 711-718

Publication date:

1998

Size:

8 Seiten, 14 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0142-1123(98)00037-1

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Rissausbreitung , mathematisches Modell , Zugspannung , Biegen , Spannungsintensitätsfaktor , Fehleranalyse , dynamische Belastung , Bruchmechanik , Wechsellastbeanspruchung , Oberflächenriss , Zugbeanspruchung , Kantenriss , Stab

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