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Buckling test of stiffened panels: Modeling and vibrational correlation testing

  • D.M.J. Peeters
  • , Alfonso Pagani
  • , Riccardo Augello
  • , Erasmo Carrera
  • , Alex Pereira do Prado
  • , Pedro Higino Cabral
  • , Henrique E.A.A. dos Santos

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    156 Downloads (Pure)

    Abstract

    Representative stiffened panels are optimized such that multiple buckling modes and failure (using open hole allowables) occur within a range of 10% of the lowest buckling load. This implies the panels cannot be loaded up to the buckling load without risking failure, hence vibrational correlation testing was used to estimate the buckling loads and modes. At the same time, a finite element model was created using the Carrera Unified Formulation. This model was validated using the tests and a good correlation between both was observed. Three panels were manufactured and each panel was put in place for testing twice. Each time a panel was put in place, the test was repeated three times. This allowed us to get a ballpark estimate for the variation due to replicas of the panel, the test set-up and repeating the tests.
    Original languageEnglish
    Title of host publicationProceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
    Subtitle of host publicationVol 4 – Modeling and Prediction
    EditorsAnastasios P. Vassilopoulos , Véronique Michaud
    Place of PublicationLausanne
    PublisherEPFL Lausanne, Composite Construction Laboratory
    Pages763-770
    Number of pages8
    ISBN (Electronic)978-2-9701614-0-0
    Publication statusPublished - 2022
    Event20th European Conference on Composite Materials: Composites Meet Sustainability - Lausanne, Switzerland
    Duration: 26 Jun 202230 Jun 2022
    Conference number: 20

    Conference

    Conference20th European Conference on Composite Materials
    Abbreviated titleECCM20
    Country/TerritorySwitzerland
    CityLausanne
    Period26/06/2230/06/22

    Keywords

    • vibrational correlation
    • buckling
    • stiffened panel

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