WrapToR composite truss structures: Measurement and modelling of mechanical response

Christopher J Hunt*, Yian Zhao, Michael R Wisnom, Benjamin K S Woods

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

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Wrapped Tow Reinforced (WrapToR) trusses are ultra-efficient structures that are produced from composite materials using a novel winding process. In this study, a structural model based on the stiffness method is developed for the novel truss configuration to predict the pre-failure mechanical response. To validate the model, the mechanical response of the structures is experimentally investigated to a high level of detail using a series of three-point bend tests. Results of the tests highlight the importance of modelling behaviour of the truss joints due to both internal joint deformations and their effect on load transfer between members. The results also show that the developed model can predict deflections and strains to a reasonable accuracy across a range of truss configurations.
Original languageEnglish
Article number112834
Number of pages10
JournalComposite Structures
Early online date14 Aug 2020
Publication statusPublished - 15 Dec 2020


  • Composite trusses
  • Computational modelling
  • Mechanical testing
  • Filament winding


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