Crack growth characteristics of carbon nanotube-based polymer composites subjected to cyclic loading

Yu Kuronuma, Yasuhide Shindo, Tomo Takeda, Fumio Narita

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

This paper presents the characterization of crack growth in carbon nanotube (CNT)-based polymer composites under fatigue loading. Fatigue crack growth tests were performed on single-edge cracked plate specimens of CNT/polycarbonate composites at room temperature and liquid nitrogen temperature (77 K). An elastic-plastic finite element analysis was also conducted to determine the J-integral range. The crack growth rate data were expressed in terms of the J-integral range, and the effect of nanotube addition on the fatigue crack growth behavior was examined. In addition, possible mechanisms of the crack growth in the nanocomposites are discussed based on microscopic observations of the specimen fracture surfaces.

Original languageEnglish
Pages (from-to)3102-3110
Number of pages9
JournalEngineering Fracture Mechanics
Volume78
Issue number17
DOIs
Publication statusPublished - 2011 Dec 1

Keywords

  • Composites
  • Cyclic or delta J
  • Fatigue crack growth
  • Finite element analysis
  • Fracture mechanics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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