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

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

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

1 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаАнглийский
Название основной публикацииAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
ИздательAmerican Institute of Physics Inc.
Том1683
ISBN (электронное издание)9780735413306
DOI
СостояниеОпубликовано - 27 окт 2015
СобытиеInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 - Tomsk, Российская Федерация
Продолжительность: 21 сен 201525 сен 2015

Конференция

КонференцияInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015
СтранаРоссийская Федерация
ГородTomsk
Период21.9.1525.9.15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Цитировать

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