✦ LIBER ✦

Modelling of anisotropic damage at a crack tip in composite laminates

✍ Scribed by W.F. Li; S.Y. Du

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 364 KB
Volume: 45
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(93)90022-k

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✦ Synopsis

Abatrae-Anisotropic continuum damage mechanics was applied to analyze the damage at a crack tip in composite laminates. An initial attempt was made to connect continuum damage mechanics with fracture mechanics. Some quantitative relations such as those between stress, energy release rate and damage variables were established by means of the model described in this paper. It was shown that the formula G, = Kf/E is not applicable when the damage at a crack tip is taken into account. Also, the relation between the critical crack length and the critical damage variables was established and it was proved that damage variables can describe the fracture condition of composite laminates.

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