Oscillatory instability of crack propagations in quasistatic fracture

Shin Ichi Sasa, Ken Sekimoto, Hiizu Nakanishi

研究成果: ジャーナルへの寄稿学術誌査読

53 被引用数 (Scopus)

抄録

Quasistatic crack propagations in a thin plate are studied theoretically. The Griffith theory is applied to determine a crack extension condition and the motion of crack tips in straight propagation. A linear stability problem for the straight propagation is formulated, based on the assumption that the crack tip moves in such a way that a singular shear stress is made to vanish. It is shown that straight propagations become unstable under certain conditions and that an oscillatory propagation appears. The critical conditions are calculated quantitatively, and the results are compared with the corresponding experiments.

本文言語英語
ページ(範囲)R1733-R1736
ジャーナルPhysical Review E
50
3
DOI
出版ステータス出版済み - 1994
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 統計学および確率
  • 凝縮系物理学

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