Branching of Fast Crack in Epoxy Resin

Kazuo Arakawa, Kiyoshi Takahashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Crack branching in epoxy (Araldite D) was studied by the method of caustics in combination with high-speed photography. Conditions for crack branching were examined using values such as crack velocity ab and crack extension resistance R∗b at the onset of crack branching. No characteristic critical values could be defined for R∗b or ab alone. Instead, it is found that the product R∗b.ab, i. e., dissipated energy per unit crack front and unit time, becomes constant when the crack branching occurs, and that the faster the crack, the larger the number of successful branches.

Original languageEnglish
Pages (from-to)718-722
Number of pages5
JournalTransactions of the Japan Society of Mechanical Engineers Series A
Issue number500
Publication statusPublished - 1988

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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