Una nueva metodología para la evaluación de la curva J-R

Translated title of the contribution: A new methodology for the evaluation of the J-R curve

J. R. Donoso, JORGE ALONSO ZAHR VIÑUELA, J. D. Landes

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A new methodology for the construction of J-R curves for ductile materials, based upon the analytical integration of the P-v relation, is presented. This method is based on the "Common" and "Concise" "Formats", and on a postulated crack growth law, that relates the amount of stable crack growth with plastic displacement. The model developed, denoted as C&C, reproduces quite well the experimentally obtained P-v, Δa-v and J-Δa curves. The results suggest that the amount of stable crack growth in a ductile material follows a power-law behavior in its dependence with plastic displacement. This methodology may be used to evaluate instability conditions, through the adequate analytical treatment of the P-v and J-Δa relations.

Translated title of the contributionA new methodology for the evaluation of the J-R curve
Original languageSpanish
Pages (from-to)419-426
Number of pages8
JournalRevista de Metalurgia (Madrid)
Volume41
Issue number6
StatePublished - 1 Nov 2005

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