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Multi-parameter failure assessment of a bi-material V-notch - Crack initiation from a free-edge singularity

  1. 1.
    0510060 - ÚFM 2020 RIV NL eng J - Článek v odborném periodiku
    Krepl, Ondřej - Klusák, Jan
    Multi-parameter failure assessment of a bi-material V-notch - Crack initiation from a free-edge singularity.
    Theoretical and Applied Fracture Mechanics. Roč. 100, APR (2019), s. 233-241. ISSN 0167-8442
    Grant CEP: GA MŠk(CZ) LQ1601; GA ČR GA17-01589S
    Institucionální podpora: RVO:68081723
    Klíčová slova: Singular stress concentration * Failure criterion * Crack initiation * Non-singular stress terms * Multi-parameter fracture mechanics
    Kód oboru RIV: JI - Kompozitní materiály
    Obor OECD: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
    Impakt faktor: 3.021, rok: 2019
    https://www.sciencedirect.com/science/article/pii/S0167844218305846?via%3Dihub

    Multi-parameter fracture mechanics criteria are used to describe crack initiation conditions in general singular stress concentrators. In the cases of stress concentrators described by only one singular stress term, multi-parameter description provides a qualitative and quantitative increase of precision. In the paper multi-parameter criteria based on an average tangential stress and average strain energy density factor are described and used to determine a crack initiation direction and a critical load in the case of a free-edge singularity. The critical load expresses a stability criterion of the studied general singular stress concentrator. Contrary to criteria employing singular stress terms only, the criterion of this kind is able to cover the influence of the direction of an external load.
    Trvalý link: http://hdl.handle.net/11104/0300627
     
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