Evaluation of interfacial shear stress between multi-walled carbon nanotubes and epoxy based on strain distribution measurement using Raman spectroscopy

• 矢代, 茂樹

  静岡大学工学部機械工学科

• 坂井田, 喜久

  静岡大学工学部機械工学科

• 島村, 佳伸

  静岡大学工学部機械工学科

• 井上, 翼

  静岡大学工学部電子物質化学科

抄録

This study investigated the stress recovery of aligned multi-walled carbon nanotubes (MWCNTs) embedded in epoxy using Raman spectroscopy, and evaluated interfacial shear stress between MWCNTs and epoxy using shear-lag analysis. To this end, ultralong aligned MWCNTs (3.8 mm long) were embedded in epoxy to obtain Raman spectra at multiple points along the MWCNTs. Downshift of the G’-band due to tensile strain was measured from the nanotube end to the center, and the strain distribution of embedded MWCNTs was evaluated successfully. Interfacial shear stress was then estimated by minimizing the error between the shear-lag analysis and measured strain distribution. The maximum interfacial shear stress between the embedded MWCNTs and epoxy was 10.3–24.1 MPa at the failure strain of aligned MWCNT-reinforced epoxy composites (0.46% strain). Furthermore, the interfacial shear stress between an individual MWCNT and epoxy was investigated.

収録刊行物

• Composites Part A: Applied Science and Manufacturing

  Composites Part A: Applied Science and Manufacturing 85 192-198, 2016-03-21

  Elsevier

キーワード

• A. Carbon nanotubes and nanofibers
• A. Nanocomposites
• B. Stress transfer
• Raman spectroscopy

詳細情報

• CRID: 1050580007680819840
• NII論文ID: 120007042080
• NII書誌ID: AA11525318
• HANDLE: 2324/4476064
• ISSN: 1359835X
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles