Optimisation of hot-forming process through in-plane constraints: Numerical and experimental studies

  • P. Bussetta
  • , R. Gomes
  • , S. Chen
  • , O. P.L. McGregor
  • , L. T. Harper
  • , P. Harrison
  • , C. Correia

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The hot-forming process for thermoplastic composites is a very promising fabrication route for high volume applications. Reliable and fast numerical tools are needed to optimise the forming process and to support industrial exploitation. This paper presents the experimental validation of a finite element-based optimisation routine, which is used to minimise the local fibre shear angle by adjusting the in-plane constraints used to control material draw-in. A non-orthogonal constitutive model is used to simulate the behaviour of the thermoplastic composite material using a finite element approach, which is coupled with a genetic algorithm to optimise forming parameters, such as clamp location, clamp length and clamping force. A double-dome benchmark geometry is used to validate the finite element approach, using grid-strain analysis to compare local shear angles and the perimeter shape of the blank.

Original languageEnglish
Title of host publicationECCM 2018 - 18th European Conference on Composite Materials
PublisherApplied Mechanics Laboratory
ISBN (Electronic)9781510896932
StatePublished - 2020
Externally publishedYes
Event18th European Conference on Composite Materials, ECCM 2018 - Athens, Greece
Duration: 24 Jun 201828 Jun 2018

Publication series

NameECCM 2018 - 18th European Conference on Composite Materials

Conference

Conference18th European Conference on Composite Materials, ECCM 2018
Country/TerritoryGreece
CityAthens
Period24/06/1828/06/18

Keywords

  • Clamping condition
  • Hot-forming
  • Non-orthogonal constitutive model
  • Optimisation
  • Thermoplastic

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