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

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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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