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Failure of cross-ply NCF composites under off-axis compressive loads - An experimental study and a new strength prediction model including fibre bundle waviness
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-1187-4796
ABB AB Corp Res, Dept Technol Consulting Appl Mech, Forskargrand 7, SE-72178 Vasterds, Sweden..
2018 (English)In: Composites Part B: Engineering, ISSN 1359-8368, E-ISSN 1879-1069, Vol. 153, p. 49-56Article in journal (Refereed) Published
Abstract [en]

The design of reliable and efficient mechanical joints with non-crimp fabric (NCF) composites depends on several factors but knowledge on actual loading direction and an accurate compressive strength prediction is essential. Motivated by this, the current study is focused on the compressive strength of cross-ply NCF composites and the influence of fibre orientation in relation to the loading direction. Possible influence of stacking sequence on the compressive strength is also studied. Compression tests of cross-ply NCF composite laminates that are loaded at various off-axis angles are performed and the failure mechanisms are identified. An analytical semi-laminar based model for strength prediction of NCF composite laminates loaded in compression is then suggested. The model take in- and out-of-plane bundle waviness into account. Good agreement between the proposed model and experiments is observed.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 153, p. 49-56
Keywords [en]
Fabrics/textiles, Strength, Analytical modelling, Mechanical testing
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-239075DOI: 10.1016/j.compositesb.2018.06.022ISI: 000448494100048Scopus ID: 2-s2.0-85050100432OAI: oai:DiVA.org:kth-239075DiVA, id: diva2:1264929
Note

QC 20181121

Available from: 2018-11-21 Created: 2018-11-21 Last updated: 2019-08-20Bibliographically approved

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Shipsha, AntonBurman, Magnus

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