Characterisation of the effect of through-thickness reinforcement on impact tolerance and out-of-plane tensile properties of composite materials

Winifred O. Obande, Walter F. Stanley

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

Abstract

The effectiveness of through-thickness reinforcement at improving impact performance and out-of-plane tensile strength of fibre reinforced composites has been investigated. Two types of carbon fibre/benzoxazine composites were manufactured and characterised; one comprising a three-dimensional (3D) orthogonal fabric preform and the other a two-dimensional (2D) bidirectional 0°/90° non-crimp fabric. The materials were subjected to 6 J/mm of impact energy and damage areas were measured for damage resistance by a combination of penetrant-enhanced x-radiography and image processing. The impacted samples were thereafter tested to failure in compression to determine their residual compressive strength as a measure of damage tolerance. Lastly, a non-standard test method was employed to quantify tensile strength in the out-of-plane direction. The 3D-woven composite was observed to have higher damage resistance and damage tolerance. Furthermore, as expected, preliminary out-of-plane tensile tests showed a marked increase in tensile strength for the 3D-woven composite.

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

Publication series

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

Conference

Conference17th European Conference on Composite Materials, ECCM 2016
Country/TerritoryGermany
CityMunich
Period26/06/1630/06/16

Keywords

  • 3D woven composites
  • Damage tolerance
  • Impact resistance
  • Out-of-plane tension

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