Micromechanics of interface. Crack arrest by strong long fibers in a brittle matrix

C. C. Yang, B. Tsai, S. Qin, T. Mura, T. Mori

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


The mechanism of the crack arrest in a composite with long fibers is analyzed by using the inclusion method. Fibers suppress a crack opening by a bridging action. Slidings along matrix-fiber interfaces result in energy dissipation. The bridging action reduces the energy release rate G for the crack extension. The energy dissipation due to sliding and interfacial debonding produces additional resistances ΔGs and ΔGd to the crack extension. G, ΔGs and ΔGd are calculated in terms of external stresses, frictional stresses, the size of a crack, the debonding length, the interface surface energy and the volume fraction of fibers.

Original languageEnglish
Pages (from-to)113-120
Number of pages8
JournalAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
Publication statusPublished - 1990
Externally publishedYes
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Dallas, TX, USA
Duration: 25 Nov 199030 Nov 1990


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