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Titolo:
Solutions for dilating shear cracks in elastic plane
Autore:
Dyskin, AV; Galybin, AN;
Indirizzi:
Univ Western Australia, Dept Civil Engn, Nedlands, WA 6907, Australia UnivWestern Australia Nedlands WA Australia 6907 nds, WA 6907, Australia
Titolo Testata:
INTERNATIONAL JOURNAL OF FRACTURE
fascicolo: 3, volume: 109, anno: 2001,
pagine: 325 - 344
SICI:
0376-9429(200106)109:3<325:SFDSCI>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
FRACTURE SURFACE-ROUGHNESS; MODE-III; DEFORMATION; FRICTION; CLOSURE; GROWTH; ROCK;
Keywords:
dilation; friction; opening; saw-like faces; shear crack; stress intensity factors;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Dyskin, AV Univ Western Australia, Dept Civil Engn, Nedlands, WA 6907, Australia Univ Western Australia Nedlands WA Australia 6907 7, Australia
Citazione:
A.V. Dyskin e A.N. Galybin, "Solutions for dilating shear cracks in elastic plane", INT J FRACT, 109(3), 2001, pp. 325-344

Abstract

A general two-dimensional solution has been obtained analytically for the crack with interating rough faces. The interaction has been modelled at a large scale as (1) Mohr-Coulomb friction and (2) the crack opening being a known function of sliding. The detailed consideration of a crack with saw-like faces has shown that the energy release rate is less than for a conventional shear crack. Tensile stress concentration caused by the crack opening reduces the angle of kinking though not sufficiently to make the crack propagate in its own plane. At a certain magnitude of shear loading the openingreaches its maximum value determined by the height of asperities. Startingfrom this point the zone where the maximum opening is reached rapidly increases and the dependencies of crack face displacements and the area of crack opening on the load become nonlinear. This however does not affect valuesof the stress intensity factors.

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Documento generato il 11/07/20 alle ore 10:39:46