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Material issues in large composite ship structures
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-9649-8621
Luleå tekniska universitet.
2001 (English)In: Cancom 2001: Third Canadian International Composites Conference, 2001Conference paper, Published paper (Refereed)
Abstract [en]

In Sweden, six 72 meter navy ships are produced using sandwich structures. The skins are carbon fiber/vinylester and the core is primarily cross-linked PVC foam. The production technique is vacuum injection molding of large sandwich panels. Several material issues have been studied during the course of ship development. Compression strength is one important problem where the present carbon fiber non-crimp fabrics (NCF) and vinylester resins seem to give much lower data than prepreg-based composites used in aerospace applications. Compression testing and microscopy techniques are used to study this effect. Lower matrix yield strength, higher fiber waviness and poor testing techniques were shown to be the reasons for low compressive strength. The improved understanding of compressive failure in NCF composites also increased confidence in ship structure performance.

Place, publisher, year, edition, pages
2001.
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-27519Local ID: 0ffef510-b9c3-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-27519DiVA, id: diva2:1000703
Conference
Canadian International Composites Conference : 21/08/2001 - 24/08/2001
Note
Godkänd; 2001; 20070104 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-01-16Bibliographically approved

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