Correlations among dynamic stress intensity factor, crack velocity and acceleration in brittle fracture

K. Arakawa, T. Mada, K. Takahashi

研究成果: ジャーナルへの寄稿学術誌査読

48 被引用数 (Scopus)

抄録

Dynamic fracture in PMMA was studied to determine the correlations among dynamic stress intensity factor KID, crack velocity a and acceleration a. Specimen geometry, a single-edge-cracked tensile plate with two circular holes, was employed to obtain the crack acceleration, deceleration and re-acceleration process in a single fracture event. KID was evaluated using the method of caustics in combination with a Cranz-Schardin high-speed camera and correlated with a and a. The behaviors of KID, a and a in a SEN specimen were also examined, and the following correlations were obtained: (1) KID was an increasing function of a, but their relation was not unique. (2) KID for a constant velocity a was larger when the crack was decelerated than when it was accelerated. (3) KID was dependent on both a and a, and KID for a = constant could be uniquely related to a.

本文言語英語
ページ(範囲)311-320
ページ数10
ジャーナルInternational Journal of Fracture
105
4
DOI
出版ステータス出版済み - 12月 1 2000

!!!All Science Journal Classification (ASJC) codes

  • 計算力学
  • モデリングとシミュレーション
  • 材料力学

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