Non-linear bending compliance of thin ply composite beams by local compression flange buckling

F. Schadt, M. Rueppel, C. Brauner, Y. Courvoisier, K. Masania, C. Dransfeld

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
8 Downloads (Pure)

Abstract

Passive spanwise bending shape-adaption has the potential to increase the efficiency and manoeuvrability of vehicles with wing-like structures. By utilisation of compression flange buckling, the in-plane stiffness can be tuned to design beams with contrasting pre-buckling and post-buckling bending stiffness. The investigated concept is experimentally validated using a thin-ply laminated composite four-point bending beam, which is designed to experience compression flange buckling in the span with constant moment. The bending stiffness was reduced by more than 41% after the onset of buckling which shows the effectiveness of compression flange buckling for non-linear bending compliance.

Original languageEnglish
Article number111995
JournalComposite Structures
Volume239
DOIs
Publication statusPublished - 1 May 2020

Keywords

  • Buckling
  • Non-linear compliance
  • Post-buckling
  • Shape-adaptation
  • Thin ply composites

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