Interactive growth of multiple fiber-bridged matrix cracks in unidirectional composites

Y. Huang, N. Y. Li, H. W. Zhang, K. C. Hwang

Research output: Contribution to journalArticle

Abstract

A model is developed for monotonic and cyclic fiber sliding in a fiber-reinforced composite containing multiple cracks. The model is used to study the fatigue growth of multiple cracks in a matrix reinforced with aligned, continuous fibers, where cracks are bridged by frictionally constrained fibers. It is established that the crack tip stress intensity factor is significantly reduced in multiple cracking due to interactions among cracks and among slip zones. The fatigue crack does not grow as fast as that for a single bridged crack or for multiple nonbridged cracks, thus the approach to steady-state crack growth is significantly delayed.

Original languageEnglish (US)
Pages (from-to)295-301
Number of pages7
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume118
Issue number3
DOIs
StatePublished - Jan 1 1996

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cracks
Cracks
composite materials
fibers
Fibers
Composite materials
matrices
Stress intensity factors
Crack tips
stress intensity factors
Crack propagation
crack tips
Fatigue of materials
sliding
slip
interactions

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "A model is developed for monotonic and cyclic fiber sliding in a fiber-reinforced composite containing multiple cracks. The model is used to study the fatigue growth of multiple cracks in a matrix reinforced with aligned, continuous fibers, where cracks are bridged by frictionally constrained fibers. It is established that the crack tip stress intensity factor is significantly reduced in multiple cracking due to interactions among cracks and among slip zones. The fatigue crack does not grow as fast as that for a single bridged crack or for multiple nonbridged cracks, thus the approach to steady-state crack growth is significantly delayed.",
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Interactive growth of multiple fiber-bridged matrix cracks in unidirectional composites. / Huang, Y.; Li, N. Y.; Zhang, H. W.; Hwang, K. C.

In: Journal of Engineering Materials and Technology, Transactions of the ASME, Vol. 118, No. 3, 01.01.1996, p. 295-301.

Research output: Contribution to journalArticle

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