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A model for crack growth with branching and kinking [PDF]
Asymptotic Analysis, 2014 We study an evolution model for fractured elastic materials in the 2-dimensional case, for which the crack path is not assumed to be known a priori. We introduce some general assumptions on the structure of the fracture sets suitable to remove the restrictions on the regularity of the crack sets and to allow for kinking and branching to develop.
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Fatigue crack closure for inclined and kinked cracks
International Journal of Fracture, 2002This paper presents recent work on finite element modelling of plasticity-induced fatigue crack closure occurring in cracks which are inclined to the loading axis, and which may then develop a kink. Such crack deviations occur naturally during crack growth, and improved life prediction models require understanding of the effects of such inclined ...
L.-W. Wei, M.N. James
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Crack kinking from an initially closed crack
International Journal of Solids and Structures, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leblond, Jean-Baptiste, Frelat, Joël
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Crack extension and kinking in piezoceramics
SPIE Proceedings, 1999The problem of an isolated crack as well as a crack with a kink in a plane piezoceramic medium is theoretically investigated in this study. The orientation of a crack with respect to the poling direction may be arbitrary. The approaches of Lekhnitskii's complex potentials and distributed dislocation modeling of cracks for elastic solids are extended to
X. L. Xu, R. K. N. D. Rajapakse
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On the stability of cracks with bridged kinks
Engineering Fracture Mechanics, 2001Abstract Crack extension in composites consisting of brittle matrix reinforced by ductile particles is analyzed under conditions of mixed in-plane loading. The applied loading is characterized in terms of the nominal stress intensity factors, k I N and k II N .
Michal Kotoul, Radek Urbiš
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Slightly curved or kinked cracks
International Journal of Fracture, 1980A solution is presented for the elastic stress intensity factors at the tip of a slightly curved or kinked two-dimensional crack. The solution is accurate to first order in the deviation of the crack surface from a straight line and is carried out by perturbation procedures analogous to those of Banichuk [1] and Goldstein and Salganik [2, 3 ...
B. Cotterell, J.R. Rice
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Mechanics of Materials, 1982
Abstract This paper attempts to provide a comprehensive summary of results on the following topics relating to crack kinking and curving: (a) Stress intensity factors for kinked cracks under combined loading; (b) applicability of Irwin's energy-release rate formula to kinked cracks; and (c) reasons behind crack kinking and curving.
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Abstract This paper attempts to provide a comprehensive summary of results on the following topics relating to crack kinking and curving: (a) Stress intensity factors for kinked cracks under combined loading; (b) applicability of Irwin's energy-release rate formula to kinked cracks; and (c) reasons behind crack kinking and curving.
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International Journal of Fracture, 1992
The integral equation of the kinked interface crack is solved numerically. The values of K I, K II and G for an interface crack with an infinitesimal kink are used to predict the kinking angle for two different material combinations under uniaxial tension.
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The integral equation of the kinked interface crack is solved numerically. The values of K I, K II and G for an interface crack with an infinitesimal kink are used to predict the kinking angle for two different material combinations under uniaxial tension.
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Crack kinking in a piezoelectric solid
International Journal of Solids and Structures, 1999The authors investigate the problem of crack kinking in a piezoelectric solid, using Stroh formalism. The kink of the crack is modeled by a continuous distribution of edge dislocations and electric dipoles, and the fundamental solution for the crack kinking is provided by the interation between a piezoelectric dislocation and a traction-free crack. The
Zhu, Ting, Yang, Wei
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