Failure behaviour of triaxial braided composites

Tobias Wehrkamp-Richter, Silvestre T. Pinho, Roland Hinterhölzl

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

Abstract

In the presented work, we propose a framework for predicting the non-linear mechanical response of triaxial braided composites using meso-scale finite element unit cells. Based on a reduced unit cell concept which exploits symmetries to minimise computational expense, a compacted and interpenetration-free yarn geometry is created within a three stage simulation process. Out-of-plane periodic boundary conditions allow an implicit consideration of the compaction of multiple braid plies in different nesting configurations, which further enables us to render high global fibre volume fractions (55-60%) using experimentally determined intra-yarn fibre volume fractions. Numerical predictions are compared to experimental data in terms of stress-strain curves.

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
Externally publishedYes
Event17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany
Duration: 26 Jun 201630 Jun 2016

Publication series

NameECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

Conference

Conference17th European Conference on Composite Materials, ECCM 2016
CountryGermany
CityMunich
Period26.06.201630.06.2016

Keywords

  • Braided composites
  • Damage
  • Failure
  • Unit cell modelling

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