高速進展開始直後におけるき裂先端応力場に現れる高次項の影響について　光干渉法による測定

DOI 機関リポジトリ Web Site Web Site 被引用文献4件 参考文献15件

書誌事項

タイトル別名
  • Effect of Higher Order Terms on Near-Tip Field of Cracks Immediately after Beginning of Rapid Propagation. Measurement by Interferometry.
  • コウソク シンテン カイシ チョクゴ ニ オケル キレツ センタン オウリョク

この論文をさがす

抄録

A method of interferometry is applied to study the near-tip field of cracks which are propagating in PMMA specimens at a speed of about 550 m/s. The interference fringes around the cracks are photographed with a holographic optical system at 18 μs or at 73 μs after the crack initiation. The interference fringes are measured and analyzed in the directions of ±72 degrees from the propagation direction of the crack in order to compare the measurement results obtained through interferometry with those through the caustic method. It is found that the effect of higher order terms appears in the near-tip field at 18 μs after the crack initiation, but disappears at 73 μs, and the singular field is developed as far as 9 mm from the tip. Consequently, it can be concluded that, in the directions of ±72 degrees from the propagation direction, the effect of higher order terms appears within several tens of microseconds after the beginning of rapid crack propagation where crack speed is more than it few hundred m/s. These results are in good agreement with those obtained through the caustic method.

収録刊行物

被引用文献 (4)*注記

もっと見る

参考文献 (15)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ