An energy-based model of longitudinal splitting in unidirectional fiber-reinforced composites

Kenji Oguni, G. Ravichandran

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Unidirectional fiber-reinforced composites are often observed to fail in a longitudinal splitting mode in the fiber direction under far-field compressive loading with weak lateral confinement. An energy-based model is developed based on the principle of minimum potential energy and the evaluation of effective properties to obtain an analytical approximation to the critical stress for longitudinal splitting. The analytic estimate for the compressive strength is used to illustrate its dependence on material properties, surface energy, fiber volume fraction, fiber diameter, and lateral confining pressure. The predictions of the model show good agreement with available experimental data.

Original languageEnglish
Pages (from-to)437-443
Number of pages7
JournalJournal of Applied Mechanics, Transactions ASME
Volume67
Issue number3
Publication statusPublished - 2000 Sep
Externally publishedYes

Fingerprint

composite materials
fibers
Fibers
Composite materials
fiber volume fraction
critical loading
compressive strength
confining
surface energy
far fields
energy
Potential energy
potential energy
Interfacial energy
Compressive strength
Volume fraction
Materials properties
evaluation
estimates
predictions

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials

Cite this

An energy-based model of longitudinal splitting in unidirectional fiber-reinforced composites. / Oguni, Kenji; Ravichandran, G.

In: Journal of Applied Mechanics, Transactions ASME, Vol. 67, No. 3, 09.2000, p. 437-443.

Research output: Contribution to journalArticle

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