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Damage tolerance analysis of NCF composite sandwich panels
Swerea SICOMP AB, Mölndal.
University of Sheffield.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-0630-2037
2008 (English)In: Composites Science And Technology, ISSN 0266-3538, E-ISSN 1879-1050, Vol. 68, no 13, p. 2635-2645Article in journal (Refereed) Published
Abstract [en]

This paper concerns development and validation of impact damage representations in carbon fibre non-crimp fabric reinforced face sheets for damage tolerance analysis of sandwich panels loaded in compression. For this purpose, experimental data accompanied by fractographic observations have been employed to scrutinize numerical predictions by state-of-the-art notch strength models. As a result, equivalent hole representations of visible impact damage (VID) and, more surprisingly, of the subtle barely visible impact damage (BVID) are recommended for reliable damage tolerance prediction of the compression after impact (CAI) load case for the investigated panels. This recommendation relies on the identification of the mechanisms controlling failure resulting in reliable damage tolerance predictions employing a linear cohesive zone model.

Place, publisher, year, edition, pages
2008. Vol. 68, no 13, p. 2635-2645
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-11088DOI: 10.1016/j.compscitech.2008.04.041ISI: 000261388200008Scopus ID: 2-s2.0-52749098524Local ID: 9fefb4f0-7369-11dd-a60f-000ea68e967bOAI: oai:DiVA.org:ltu-11088DiVA, id: diva2:984037
Note
Validerad; 2008; 20080826 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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