A material and environment-dependent criterion for the prediction of fatigue crack paths in metallic structures

Véronique Doquet; Graciela Bertolino

doi:10.1016/j.engfracmech.2007.07.004

A material and environment-dependent criterion for the prediction of fatigue crack paths in metallic structures

Véronique Doquet, Graciela Bertolino

Department of Mechanics École Polytechnique

Research output: Contribution to journal › Article › peer-review

Abstract

Crack growth under mode II cyclic loading was investigated in maraging steel, ferritic-pearlitic steel and TA6V. When ΔK_II exceeds a threshold value, cracks do not bifurcate but grow in mode II over a distance which increases with ΔK_II. Shear mode crack growth was much more extensive in maraging steel than in TA6V and ferritic-pearlitic steel. This result is discussed in relation with the cyclic behaviour of the materials and the importance of friction along the crack faces. The maximum growth rate criterion is shown to be suitable for the prediction of crack paths when shear mode crack growth is likely to occur.

Original language	English
Pages (from-to)	3399-3412
Number of pages	14
Journal	Engineering Fracture Mechanics
Volume	75
Issue number	11
DOIs	https://doi.org/10.1016/j.engfracmech.2007.07.004
Publication status	Published - 1 Jan 2008
Externally published	Yes

Keywords

Bifurcation
Crack
Fatigue
Friction
Mode II

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10.1016/j.engfracmech.2007.07.004

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title = "A material and environment-dependent criterion for the prediction of fatigue crack paths in metallic structures",

abstract = "Crack growth under mode II cyclic loading was investigated in maraging steel, ferritic-pearlitic steel and TA6V. When ΔKII exceeds a threshold value, cracks do not bifurcate but grow in mode II over a distance which increases with ΔKII. Shear mode crack growth was much more extensive in maraging steel than in TA6V and ferritic-pearlitic steel. This result is discussed in relation with the cyclic behaviour of the materials and the importance of friction along the crack faces. The maximum growth rate criterion is shown to be suitable for the prediction of crack paths when shear mode crack growth is likely to occur.",

keywords = "Bifurcation, Crack, Fatigue, Friction, Mode II",

author = "V{\'e}ronique Doquet and Graciela Bertolino",

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doi = "10.1016/j.engfracmech.2007.07.004",

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T1 - A material and environment-dependent criterion for the prediction of fatigue crack paths in metallic structures

AU - Doquet, Véronique

AU - Bertolino, Graciela

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Crack growth under mode II cyclic loading was investigated in maraging steel, ferritic-pearlitic steel and TA6V. When ΔKII exceeds a threshold value, cracks do not bifurcate but grow in mode II over a distance which increases with ΔKII. Shear mode crack growth was much more extensive in maraging steel than in TA6V and ferritic-pearlitic steel. This result is discussed in relation with the cyclic behaviour of the materials and the importance of friction along the crack faces. The maximum growth rate criterion is shown to be suitable for the prediction of crack paths when shear mode crack growth is likely to occur.

AB - Crack growth under mode II cyclic loading was investigated in maraging steel, ferritic-pearlitic steel and TA6V. When ΔKII exceeds a threshold value, cracks do not bifurcate but grow in mode II over a distance which increases with ΔKII. Shear mode crack growth was much more extensive in maraging steel than in TA6V and ferritic-pearlitic steel. This result is discussed in relation with the cyclic behaviour of the materials and the importance of friction along the crack faces. The maximum growth rate criterion is shown to be suitable for the prediction of crack paths when shear mode crack growth is likely to occur.

KW - Bifurcation

KW - Crack

KW - Fatigue

KW - Friction

KW - Mode II

U2 - 10.1016/j.engfracmech.2007.07.004

DO - 10.1016/j.engfracmech.2007.07.004

M3 - Article

AN - SCOPUS:41749085255

SN - 0013-7944

VL - 75

SP - 3399

EP - 3412

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

IS - 11

ER -

A material and environment-dependent criterion for the prediction of fatigue crack paths in metallic structures

Abstract

Keywords

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