ランプ入力による衝撃ＥＮＦ試験の有限要素シミュレーション（提案したエネルギー解放率評価法の有効性の検証）

• 日下 貴之

• 黒川 知明

• 北條 正樹

• 落合 庄治郎

書誌事項

タイトル別名

• Finite Element Simulation of Impact End Notched Flexure Test Using Ramped Incident Waves(Verification of the Proposed Method for Estimating Energy Release Rate).
• ランプ ニュウリョク ニヨル ショウゲキ ENF シケン ノ ユウゲン ヨウソ

抄録

The behavior of an end notched flexure specimen subjected to impact loading was investigated by transient finite element analyses. The aim of this study is to confirm the validity of the estimation method for mode II interlaminar fracture toughness of composite materials under a high loading rate. which was proposed by the authors. Finite element results showed that flexural vibration of the specimen could be effectively suppressed when gentle gradient ramped incident stress waves were applied. while marked vibration tended to be excited when sharp-gradient step incident stress waves were applied. In the former case, a simple formula based on the static compliance method can be applied to estimate dynamic energy release rate as the authors suggested previously. Furthermore, the estimation error in the proposed method can be reduced by evaluating energy release rate from the surface strain of the specimen.

収録刊行物

• 日本機械学会論文集Ａ編

  日本機械学会論文集Ａ編 63 (605), 158-164, 1997

  一般社団法人 日本機械学会

キーワード

• Composite Material
• Delamination
• Impact Strength
• Fracture Toughness
• Numerial Analysis
• Finite Element Method
• End Notched Flexure Test

詳細情報

• CRID: 1390001204446609920
• NII論文ID: 110002373998
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.63.158
• ISSN: 18848338
• ISSN: 03875008
• ISSN: http://id.crossref.org/issn/03875008
• NDL書誌ID: 4127081
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4127081
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/63/605/63_605_158/_pdf
• 本文言語コード: ja
• 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