Experimental analysis of thermal and damage evolutions of DCFC under static and fatigue loading

Jefri Bale, Emmanuel Valot, Martine Monin, Olivier Polit, Claude Bathias, Tresna Priyana Soemardi,

Research output: Contribution to journalReview articlepeer-review

6 Citations (Scopus)

Abstract

Discontinuous carbon fibre composite (DCFC) is a new low-cost material that has already been applied for commercial components, such as window frames of the Boeing 787 Dreamliner. Studying DCFC is very challenging because it does not show the same behaviour than conventional composites or isotropic materials. This work presents an experimental study of DCFC specimens submitted to static and fatigue tensile loading, based on mechanical and thermography non destructive evaluation (NDE) technique. An infra-red (IR) camera is used for real time monitoring of temperature change at the specimen outer surface. Under static loading, thermal response permits to well detect the early appearance of micro defects up to the final failure of DCFC material. Moreover, thermal response gives a good correlation with the damage evolution under fatigue loading. It is also shown that thermography method allows to successfully determine the high cycle fatigue strength (HCFS) of DCFC material.

Original languageEnglish
Pages (from-to)165-184
Number of pages20
JournalRevue des Composites et des Materiaux Avances
Volume26
Issue number2
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • Carbon fibre
  • Discontinuous reinforcement
  • Fatigue
  • Thermal analysis

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