Loading rate-dependent fracture properties and electrical resistance-based crack growth monitoring of polycarbonate reinforced with carbon nanotubes under tension

Fumio Narita, Yasuhide Shindo, Tomo Takeda, Yu Kuronuma, Kazuaki Sanada

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This paper presents a combined numerical-experimental study on the loading ratedependent fracture behavior of cracked carbon nanotube (CNT)-based polymer composites under tension. Tensile tests at various loading rates were conducted on single-edge cracked plate specimens of CNT/polycarbonate composites. The electrical resistance change of the composite specimens was utilized to capture the crack behavior during the tests. An elasticplastic finite element analysis was also employed to determine the fracture properties by means of the J-integral. In addition, scanning electron microscopy (SEM) observation was implemented to assess the fracture mechanisms of the CNT-based polymer composites under the different loading rates.

Original languageEnglish
Pages (from-to)115-122
Number of pages8
JournalJournal of Testing and Evaluation
Volume43
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

Keywords

  • Carbon nanotubes
  • Electrical properties
  • Fracture
  • Material testing
  • Mesomechanics
  • Modeling
  • Polymermatrix composites
  • Self-sensing

ASJC Scopus subject areas

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

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