Analysis and testing of a thermoplastic composite stiffened panel under compression

Kevin van Dooren, Edgars Labans, Bas Tijs, Chiara Bisagni, J. Waleson

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

1 Citation (Scopus)
76 Downloads (Pure)

Abstract

This paper presents the numerical analysis of a thermoplastic composite stiffened panel subjected to compression load. The panel has three stringers with a non-symmetric design, with an artificial crack at the middle stringer interface and is made from a fast crystallizing polyetherketoneketone carbon composite. The finite element model includes an approximation of the geometrical imperfections which were measured using a digital image correlation system. The finite element analyses are discussed, where the crack propagation is modelled using the virtual crack closure technique. The results show that crack propagation starts rather early after buckling and the crack growth behaviour is heavily influenced by the buckling shape, which consists of three half-waves in longitudinal direction in each bay.

Original languageEnglish
Title of host publicationProceedings of 22nd International Conference on Composite Materials (ICCM22), Melbourne, AU, August 11-16, 2019
Pages2336-2342
Number of pages7
Publication statusPublished - 2019
Event22nd International Conference on Composite Materials - Melbourne, Australia
Duration: 10 Aug 201916 Aug 2019
Conference number: 22

Conference

Conference22nd International Conference on Composite Materials
Abbreviated titleICCM22 2019
CountryAustralia
CityMelbourne
Period10/08/1916/08/19

Keywords

  • Thermoplastic
  • Stiffened Panel
  • Buckling
  • Collapse

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