Evaluation of Dynamic Fracture Toughness of Unidirectional CFRP Laminates.

• Adachi Tadaharu

• Arai Masahiro

• Sakabe Naoki

• Matsumoto Hiroyuki

抄録

In the present paper, dynamic interlaminar fracture toughness of carbon fiber reinforced plastics (CFRP) is estimated by split Hopkinson's pressure bar test using end notched flexure (ENF) specimens. The dynamic deformation of the specimen is approximated by classical beam theory with Laplace transform. The Mode II fracture toughness of unidirectional CFRP is computed by the analyzed deflection of the specimen employing the scheme of J-integral with the measured impulsive load and reactions at the supported points. Through some numerical calculations, the validity of the J-integral for the dynamic ENF test is confirmed. The experimental results for carbon/epoxy laminates show that dynamic interlaminar fracture toughness of the unidirectional specimen has dependency on a deflection rate.

収録刊行物

• JSME International Journal Series A Solid Mechanics and Material Engineering

  JSME International Journal Series A Solid Mechanics and Material Engineering 43 (2), 179-185, 2000

  一般社団法人 日本機械学会

キーワード

• Composite Materials
• Fracture Toughness
• Fracture Mechanics
• J-integral
• Impact Strength
• ENF Test

詳細情報

• CRID: 1390282681471082496
• NII論文ID: 130003902524
• NII論文ID: 110002965212
• NII書誌ID: AA11179396
• DOI: 10.1299/jsmea.43.179
• ISSN: 13475363
• ISSN: 13447912
• NDL書誌ID: 5352915
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5352915
• Web Site: http://www.jstage.jst.go.jp/article/jsmea1997/43/2/43_2_179/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可