Characterisation of cryogenically cycled autoclave & ATL CF/PEEK laminates using 3-D X-ray CT

David M. Grogan, Sean B. Leen, Conchúr M.Ó. Brádaigh

Research output: Contribution to conference (Published)Paperpeer-review

Abstract

Non-destructive testing (NDT) techniques including optical microscopy and 3-D X-ray computed tomography (CT) are used to characterise and compare the defect content and damage formation in cryogenically cycled CF/PEEK specimens manufactured using two distinct processing methods: autoclave and automated tape laying (ATL). Significant differences in void volume content as well as transverse microcrack density are observed in the specimens post-cycling, with the presence of large air gaps in the ATL specimens likely contributing to the observed damage accumulation behaviour.

Original languageEnglish
Publication statusPublished - 2015
Event20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark
Duration: 19 Jul 201524 Jul 2015

Conference

Conference20th International Conference on Composite Materials, ICCM 2015
Country/TerritoryDenmark
CityCopenhagen
Period19/07/1524/07/15

Keywords

  • Automated Tape Laying (ATL)
  • Cryogenic cycling
  • Defects
  • NonDestructive Testing (NDT)
  • Thermoplastic composites

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