Engineering calculation of fracture toughness of materials with chevron-notched specimens

Yevgeny Deryugin, Victor Panin, Boris Suvorov, Vladimir Kibitkin, Natalya Antipina

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A new method of crack resistance of metal materials is given for small-sized chevron-notched specimens. Specific fracture energy (SFE) is offered to be the main characteristic of fracture toughness. A relation for notch edges opening λe versus the applied external force, crack length and chevron angle was found theoretically. It makes it possible to evaluate variations of compliance of a specimen in the process of crack spreading without the "loading-unloading" regime. Unlike linear fracture mechanics, this technique does not require special conditions on the size of the plastic zone in the vicinity of the crack tip. It is shown that the measured displacement of the notch edges opening λ contains the term λp, which relates to some plastic deformation of a specimen and does not depend on the crack growth. In general, λ = λe + λp.

Original languageEnglish
Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
PublisherAmerican Institute of Physics Inc.
Volume1683
ISBN (Electronic)9780735413306
DOIs
Publication statusPublished - 27 Oct 2015
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 - Tomsk, Russian Federation
Duration: 21 Sep 201525 Sep 2015

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015
CountryRussian Federation
CityTomsk
Period21.9.1525.9.15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Engineering calculation of fracture toughness of materials with chevron-notched specimens'. Together they form a unique fingerprint.

  • Cite this

    Deryugin, Y., Panin, V., Suvorov, B., Kibitkin, V., & Antipina, N. (2015). Engineering calculation of fracture toughness of materials with chevron-notched specimens. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Vol. 1683). [020039] American Institute of Physics Inc.. https://doi.org/10.1063/1.4932729