A Theoretical Note on Mode I Crack Kinking and Branching

Abstract:

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An energy-based fracture mode has been derived for the mode I crack kinking and branching. The classic -integral has been further explored by a new partial integral path and the analytical solution of the energy release rate for crack kinking and branching from a mode-I crack tip has been established. The crack kinking/branching angle has also been analytically derived. It shows that the Griffith’s theorem and conservation law can be applied to both model I crack extension and model I crack kinking and branching. The branching mechanism for quasi-static mode-I crack has been theoretically investigated. The branching toughness and the K-based criterion for crack branching have been defined. The crack branching phenomena predicted by the present model are in well agreement with the experimental observations reported in the literatures.

Info:

Periodical:

Advanced Materials Research (Volumes 118-120)

Edited by:

L.Y. Xie, M.N. James, Y.X. Zhao and W.X. Qian

Pages:

314-318

DOI:

10.4028/www.scientific.net/AMR.118-120.314

Citation:

Y.J. Xie et al., "A Theoretical Note on Mode I Crack Kinking and Branching", Advanced Materials Research, Vols. 118-120, pp. 314-318, 2010

Online since:

June 2010

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Price:

$35.00

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