Temperature effects on mixed mode I/II delamination under quasi-static and fatigue loading of a carbon/epoxy composite

Georgia Charalambous*, Giuliano Allegri, Stephen R. Hallett

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

39 Citations (Scopus)
11 Downloads (Pure)

Abstract

Abstract This paper addresses the effect of temperature on the mixed-mode interlaminar fracture toughness and fatigue delamination growth rate of a carbon-fibre/epoxy material, namely IM7/8552. Quasi-static and fatigue characterisation tests were carried out at -50 °C, 20 °C, 50 °C and 80 °C, using asymmetric cut-ply coupons. The experimental results show that temperature may have an accelerating or delaying effect on delamination growth, depending on the loading regime, i.e. either quasi-static or fatigue. Fractographic examinations were also carried out in order to assist the interpretation of the experimental data. A semi-empirical equation is introduced to describe the experimentally observed fatigue delamination growth rates at elevated temperatures.

Original languageEnglish
Article number3937
Pages (from-to)75-86
Number of pages12
JournalComposites Part A: Applied Science and Manufacturing
Volume77
DOIs
Publication statusPublished - 2 Jul 2015

Structured keywords

  • Composites UTC

Keywords

  • B. Delamination
  • B. Fatigue
  • Mixed mode I/II
  • Temperature

Fingerprint Dive into the research topics of 'Temperature effects on mixed mode I/II delamination under quasi-static and fatigue loading of a carbon/epoxy composite'. Together they form a unique fingerprint.

Cite this