The influence of tow tackiness on tow pull-up during the manufacturing of a composite pressure vessel

Alex Nedelcu, André Mendes Florindo, Sungi Han, Jaap Dekker, Maarten de Vlieger, Saullo G.P. Castro, Daniël Peeters

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Double-curved composite structures that are manufactured via automated fiber placement, such as pressure vessels, can take advantage of tow steering to reduce weight. This design freedom comes with the cost of adding internal normal stresses to the tow, possibly leading to wrinkles or pull up. The present work investigates tow pull up both experimentally and analytically and details a correlation between tow pull up and the minimum critical steering radius, where the material tackiness and the modelled plate’s length are found to be the most influential parameters. The experimental determination of the material tackiness is the next step to improve the predictive capabilities of the proposed model.
Original languageEnglish
Pages (from-to)132-135
Number of pages4
JournalManufacturing Letters
Volume40
DOIs
Publication statusPublished - 2024

Keywords

  • Automated fiber placement
  • Ritz method
  • Fiber steering
  • Tow pull up

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