The Influence of Face Sheet Wrinkle Defects on the Performance of FRP Sandwich Structures

Brian Hayman, Carl Christian Berggreen, Robert Pettersson

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Wrinkle defects may reduce the compressive strength of a face laminate for inplane loading applied perpendicularly to the line of the wrinkle. To be able to decide whether a repair is needed it is necessary to know the magnitude of the strength reduction for a given wrinkle geometry. In the studies reported here, the influence of wrinkle defects on the in-plane compressive strength of quasiisotropic CFRP laminates used in PVC foam-cored sandwich panels has been investigated by three approaches: testing of sandwich beam specimens in fourpoint bending, testing of sandwich panels with in-plane compression, and finite element simulation. Wrinkles involving different numbers of plies have been considered. Two different sandwich lay-ups typical of deck and hull bottom panels in a naval ship have been included.
Original languageEnglish
Title of host publicationSandwich Structures 7 : Advancing with Sandwich
Place of PublicationNetherlands
Publication date2005
EditionO. T. Thomsen, E. Bozhevolnaya and A. Lyckegaard
ISBN (Print)978-1-4020-3444-2
Publication statusPublished - 2005
Event7th International Conference on Sandwich Structures - Aalborg, Denmark
Duration: 29 Aug 200531 Aug 2005
Conference number: 7


Conference7th International Conference on Sandwich Structures

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