On the localization of plastic strain at the prefailure stage and the possibility of predicting the site and time of ductile rupture

V. I. Danilov, D. V. Orlova, L. B. Zuev, I. O. Bolotina

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Abstract

The localization of macrodeformation during the transition from plastic flow to ductile rupture is studied for a wide class of metals. It is found that the mechanism behind this process is the same as that behind plastic deformation and as such can be described as a change in the type of localized deformation autowave in the following sequence: phase autowave → steady dissipative structure → collapse of autowave or its contraction at the site of ensuing failure. The kinetic characteristics of an autowave collapsing at the prefailure stage, which can be found experimentally, allow one to predict the spatio-temporal coordinates of rupture long before its signs appear.

Original languageEnglish
Pages (from-to)207-213
Number of pages7
JournalTechnical Physics
Volume56
Issue number2
DOIs
Publication statusPublished - 1 Feb 2011

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plastic flow
plastic deformation
contraction
plastics
kinetics
metals

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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On the localization of plastic strain at the prefailure stage and the possibility of predicting the site and time of ductile rupture. / Danilov, V. I.; Orlova, D. V.; Zuev, L. B.; Bolotina, I. O.

In: Technical Physics, Vol. 56, No. 2, 01.02.2011, p. 207-213.

Research output: Contribution to journalArticle

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