Size dependency of tension strength in natural fiber composites

G. Dill-Langer, R. Cruz Hidalgo, F. Kun, Y. Moreno, S. Aicher, H. J. Herrmann

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This paper reports on a combined experimental and theoretical study on the size dependency of tension strength of clear wood at loading parallel to fiber direction. The fracture behavior of the tested softwood specimens was found to be rather brittle with low precursory activity and a statistical variation of the strength. The distribution of the strength values can be well fitted with a Weibull distribution distinguished by a shape parameter ρ ∼ 8-10. A significant dependency of the mean strength of the material on the cross-sectional size of the specimens was obtained. The range of load redistribution in clear wood subjected to tension parallel to fiber was assessed by the theoretical concept of fiber bundle models for fiber composites. Hereby the macroscopic behavior was modelled in terms of the microscopic damage process.

Original languageEnglish
Pages (from-to)547-560
Number of pages14
JournalPhysica A: Statistical Mechanics and its Applications
Volume325
Issue number3-4
DOIs
Publication statusPublished - Jul 15 2003

Keywords

  • Fiber bundle models
  • Size effect
  • Wood fibers

ASJC Scopus subject areas

  • Statistics and Probability
  • Condensed Matter Physics

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