Finite elements modeling of delaminations in composite laminates

m. Gaiotti, C.M. Rizzo, Kim Branner, Peter Berring

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

    Abstract

    The application of composite materials in many structures poses to engineers the problem to create reliable and relatively simple methods, able to estimate the strength of multilayer composite structures. Multilayer composites, like other laminated materials, suffer from layer separation, i.e., delaminations, which may affect the stiffness and stability of structural components. Especially deep delaminations in the mid surface of laminates are expected to reduce the effective flexural stiffness and lead to collapse, often due to buckling behaviour. This paper deals with the numerical modelling of the buckling strength of composite laminates containing delaminations. Namely, non-linear buckling and post-buckling analyses are carried out to predict the critical buckling load of elementary composite laminates affected by rectangular delaminations of different sizes and locations, which are modelled by finite elements using different techniques. Results obtained with different finite element models are compared and discussed.
    Original languageEnglish
    Title of host publicationAdvances in Marine Structures
    EditorsW. Fricke
    Place of PublicationLondon
    PublisherTaylor & Francis
    Publication date2011
    Pages133-139
    ISBN (Print)978-0-415-67771-4
    DOIs
    Publication statusPublished - 2011
    Event3rd International Conference on Marine Structures - Hamburg, Germany
    Duration: 28 Mar 201130 Mar 2011

    Conference

    Conference3rd International Conference on Marine Structures
    CountryGermany
    CityHamburg
    Period28/03/201130/03/2011

    Keywords

    • Wind turbine structures

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