Failure initiation at V-notch tips in quasi-brittle materials

Dominique Leguillon, Zohar Yosibash

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A failure initiation criterion at V-notch tips for quasi-brittle is presented, in which a small damaged or plastic zone is evident that cannot not be neglected in terms of dissipated energy and stress state. This criterion is based on the finite fracture mechanics (FFM) coupled criterion, which requires a simultaneously fulfillment of an energy and a stress criteria. Under the assumption that the damaged zone and the virtual crack extension are small, matched asymptotic expansions are used. The damaged zone grows first, proportionally to the square of the applied load and then, above a threshold, a virtual crack of a given length simultaneously satisfies the energy and stress criteria, and failure occurs.

Original languageEnglish
Title of host publicationICF 2017 - 14th International Conference on Fracture
EditorsEmmanuel E. Gdoutos
PublisherInternational Conference on Fracture
Pages271-272
Number of pages2
ISBN (Electronic)9780000000002
StatePublished - 1 Jan 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: 18 Jun 201720 Jun 2017

Publication series

NameICF 2017 - 14th International Conference on Fracture
Volume1

Conference

Conference14th International Conference on Fracture, ICF 2017
Country/TerritoryGreece
CityRhodes
Period18/06/1720/06/17

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