Predicting wrinkle formation in components manufactured from toughened UD prepreg

Jonathan P.H. Belnoue, James Kratz, Oliver J. Nixon-Pearson, Tassos Mesogitis, Dmitry S. Ivanov, Stephen R. Hallett

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

2 Citations (Scopus)

Abstract

Wrinkles in components made of composite materials are detrimental for the component integrity and need to be avoided. Even though process modelling techniques have considerably improved over the past 20 years or so, predicting the appearance of wrinkles arising from the manufacturing process remains very challenging. The paper proposes a new numerical framework for the prediction of wrinkle formation in composite manufacturing. Two industry relevant cases (i.e. a specimen mimicing gaps and overlaps arising from an automated fibre placement (AFP) process and a stepped laminate) are analysed using this new method. Model predictions for the internal ply geometries are compared to real samples micrographs.This demonstrates the model's ability to predict wrinkles formed during composite manufacturing and gives further validation of a consolidation model for toughened prepreg proposed earlier by the authors.

Original languageEnglish
Title of host publicationECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Electronic)9783000533877
Publication statusPublished - 2016
Event17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany
Duration: 26 Jun 201630 Jun 2016

Conference

Conference17th European Conference on Composite Materials, ECCM 2016
Abbreviated titleECCM 2016
CountryGermany
CityMunich
Period26/06/1630/06/16

Keywords

  • Multi-physics
  • Multi-scale
  • Process modelling
  • Toughened prepreg
  • Wrinkles

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