A computational study of the dynamic deformation and fracture in a coated material

R. R. Balokhonov, S. A. Martynov, V. A. Romanova, E. E. Batukhtina, V. S. Shakhijanov

    Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

    Аннотация

    The deformation and fracture of a coated material with a modified surface subjected to dynamic loading are studied. A mechanical boundary-value problem formulated in terms of plane strain is solved numerically by the finite-difference method. The mechanical responses of a steel substrate and a boride coating are described by models of elastic-plastic media exhibiting isotropic hardening and elastic-brittle fracture, respectively. The geometry of the interface between the coating and the substrate corresponds to that observed experimentally and is explicitly accounted for in the calculations. Numerical experiments are performed using different loading velocities applied to the coating surface. The coating fracture behavior is shown to be essentially dependent on the strain rate. At low dynamic compression rates, crack nucleation in the coating is found to occur solely in local areas experiencing bulk tension and to grow in the direction of load application, whereas mixed tension-compression fracture mechanism is involved at high compressive loading velocities, and cracking basically follows the direction of maximum tangential stresses.

    Язык оригиналаАнглийский
    Название основной публикацииAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
    ИздательAmerican Institute of Physics Inc.
    Том1783
    ISBN (электронное издание)9780735414457
    DOI
    СостояниеОпубликовано - 10 ноя 2016
    СобытиеInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Российская Федерация
    Продолжительность: 19 сен 201623 сен 2016

    Конференция

    КонференцияInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
    СтранаРоссийская Федерация
    ГородTomsk
    Период19.9.1623.9.16

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Fingerprint Подробные сведения о темах исследования «A computational study of the dynamic deformation and fracture in a coated material». Вместе они формируют уникальный семантический отпечаток (fingerprint).

  • Цитировать

    Balokhonov, R. R., Martynov, S. A., Romanova, V. A., Batukhtina, E. E., & Shakhijanov, V. S. (2016). A computational study of the dynamic deformation and fracture in a coated material. В Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 (Том 1783). [020009] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966302