Crack path kinking in brittle fracture under pure mode i loading

Vladimir Kurguzov, Alexander Demeshkin

    Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

    Аннотация

    An experimental and theoretical study of the fracture strength of compact tension specimens and double cantilever beams made of polymethylmethacrylate (PMMA) under tension was carried out. The critical loads and crack propagation paths for these samples under pure mode I loading conditions differ markedly. Energy-based theoretical model, which allows predicting the instability of the crack growth path, is presented. The theoretical model takes into account both the singular term of stress in front of the crack tip and the first non-singular term known as T-stress. To verify the theoretical model, the experimental results obtained in fracture test on several mode I cracked samples are used. Computer simulation of crack propagation in a geometrically and physically nonlinear formulation has been performed. The experimental data are compared with the calculation results. It is shown that the instability of the crack path substantially depends on the geometry and can be prevented by changing the sample geometry or type of load.

    Язык оригиналаанглийский
    Название основной публикацииHigh-Energy Processes in Condensed Matter, HEPCM 2020
    Подзаголовок основной публикацииProceedings of the XXVII Conference on High-Energy Processes in Condensed Matter, Dedicated to the 90th Anniversary of the Birth of RI Soloukhin
    РедакторыVasily M. Fomin
    ИздательAmerican Institute of Physics Inc.
    Число страниц7
    ISBN (электронное издание)9780735440180
    DOI
    СостояниеОпубликовано - 26 окт 2020
    Событие27th Conference on High-Energy Processes in Condensed Matter, HEPCM 2020 - Novosibirsk, Российская Федерация
    Продолжительность: 29 июн 20203 июл 2020

    Серия публикаций

    НазваниеAIP Conference Proceedings
    Том2288
    ISSN (печатное издание)0094-243X
    ISSN (электронное издание)1551-7616

    Конференция

    Конференция27th Conference on High-Energy Processes in Condensed Matter, HEPCM 2020
    СтранаРоссийская Федерация
    ГородNovosibirsk
    Период29.06.202003.07.2020

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