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. E-ISSN 1872-7638
Grant CEP: GA MŠMT(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
Obor OECD: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impakt faktor: 3.021, rok: 2019 ; AIS: 0.575, rok: 2019
Způsob publikování: Omezený přístup
Web výsledku:
https://www.sciencedirect.com/science/article/pii/S0167844218305846?via%3DihubDOI: https://doi.org/10.1016/j.tafmec.2019.01.021

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