CED (crack energy density) for an interface crack

Oheon Kwon, Takao Utsunomiya, Katsuhiko Watanabe

研究成果: Article査読

抄録

The fracture parameter of an interface crack has yet to be established even for an elastic crack. The CED (crack energy density) was proposed as a crack parameter which enables us to be free from the restrictions on the constitutive equation, and it has been shown that it is applicable, in a unified way, to various kinds of crack behavior in a homogeneous material. Therefore, the CED may also be applicable to an interface crack. In this paper, the fundamentals of the CED for an interface crack are studied. The concrete definition of the CED for an interface crack is given first, and it is shown that the CED can be divided into mode I and mode II contributions that can be expressed by domain integrals without any restrictions on the constitutive equation. Subsequently, the relationships to the conventional crack parameters of the CED are derived. Moreover, the substantial mode I and mode II contributions of the energy release rate are introduced, and their correspondence to the mode I and mode II contributions of the CED is discussed.

本文言語English
ページ(範囲)224-230
ページ数7
ジャーナルJSME International Journal, Series A: Mechanics and Material Engineering
37
3
DOI
出版ステータスPublished - 1994
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

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