On the notch sensitivity of flax fibre metal laminates under static and fatigue loading
Article
Article Title | On the notch sensitivity of flax fibre metal laminates under static and fatigue loading |
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ERA Journal ID | 3670 |
Article Category | Article |
Authors | Kandare, E. (Author), Yoo, S. (Author), Chevali, V. S. (Author) and Khatibi, A. A. (Author) |
Journal Title | Fatigue and Fracture of Engineering Materials and Structures |
Journal Citation | 41 (8), pp. 1691-1705 |
Number of Pages | 15 |
Year | 2018 |
Publisher | John Wiley & Sons |
Place of Publication | United Kingdom |
ISSN | 1460-2695 |
8756-758X | |
Digital Object Identifier (DOI) | https://doi.org/10.1111/ffe.12807 |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/full/10.1111/ffe.12807 |
Abstract | Damage progression and failure characteristics of open-hole flax fibre aluminium laminate (flax-FML) specimens subjected to quasi-static tensile or tension-tension fatigue loading were experimentally investigated. Notched and unnotched flax-FML composites exhibited brittle fracture with little or no fibre pull-out and minimal delamination at the aluminium/adhesive interface. The flax-FMLs were tested to failure under tension-tension fatigue loading conditions (R ratio of 0.1; frequency of 10Hz; applied fatigue stresses ranging between 30% and 80% of the respective ultimate tensile strength values). The fatigue cycles to failure decreased with the increase in the applied fatigue stress and hole diameter. A phenomenological modelling technique was developed to evaluate the fatigue life of an open-hole flax-FML composite. Fatigue tests on specimens subjected to a maximum load equivalent to 35% of the respective tensile failure strength were interrupted at around 85% of the corresponding fatigue life. The accumulated fatigue damage in these specimens was characterised using X-ray computed tomography. For benchmarking purposes, the fatigue performance and related damage progression in the flax-FML composite were compared with those of the glass-FMLs. |
Keywords | damage progression; fatigue modelling; flax fibre; FML composite; notch strength |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Royal Melbourne Institute of Technology (RMIT) |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q540x/on-the-notch-sensitivity-of-flax-fibre-metal-laminates-under-static-and-fatigue-loading
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