Вестник Нижегородского университета им. Н.И. Лобачевского. Серия: Социальные науки

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Title of Article

NUCLEATION OF MICROCRACKS IN THE FRAGMENTED STRUCTURE

Issue	5
Date	2010

Article type	scientific article	UDC	539.4
Pages	90-94	Keywords	dislocation ensemble, disclinations, microcrack, elastic energy, fragmentation, screening

Authors

Sarafanov Georgiy FedorovichNizhegorodskiy gosuniversitet im. N.I. Lobachevskogo, Nizhegorodskiy filial Instituta mashinovedeniya im. A.A. Blagonravova RAN
Perevezentsev Vladimir NikolaevichNizhegorodskiy gosuniversitet im. N.I. Lobachevskogo, Nizhegorodskiy filial Instituta mashinovedeniya im. A.A. Blagonravova RAN

Abstract

Microcrack nucleation conditions in the elastic field of a disclination screened by a distributed dislocation charge have been considered. The threshold value of the disclination power at which a microcrack nucleates has been defined. The plastic deformation that screens the disclination elastic field has been shown to stabilize the microcrack growth up to sizes of about

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