Theoretical and experimental study of the effect of fiber heads on the mechanical properties of non-continuous basalt fiber reinforced composites

L. M. Vas, K. Pölöskei, D. Felhõs, T. Deák, T. Czigány

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The effect of basalt fibers, produced by the Junkers technology and used as reinforcement in polymer composites, was modeled on the properties of composites, adapting the statistical fiber mat model of Poisson type. The random distribution was approximated by so-called effective spheres that act as defect sites in composites, reducing their strength. The role of fiber heads in strength reduction and the corresponding failure modes were analyzed theoretically using a model and by experiments performed on specimens containing a single fiber head located at different distances from the crack initiation. The applicability of the model was proven both experimentally and by finite element analysis. Based on all these investigations, the effective cross section reduction, and hence the strength reduction (predicted by the model) caused by the presence of fiber heads was proven.

Original languageEnglish
Pages (from-to)109-121
Number of pages13
JournalExpress Polymer Letters
Volume1
Issue number2
DOIs
Publication statusPublished - Feb 2007

Fingerprint

Basalt
basalt
mechanical properties
Mechanical properties
composite materials
fibers
Fibers
Composite materials
crack initiation
failure modes
reinforcement
statistical distributions
Crack initiation
Failure modes
Reinforcement
Polymers
Finite element method
Defects
cross sections
defects

Keywords

  • Basalt fiber
  • Fiber head
  • Finite element model
  • Modeling and simulation
  • Polymer composites

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry
  • Chemical Engineering(all)
  • Organic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Theoretical and experimental study of the effect of fiber heads on the mechanical properties of non-continuous basalt fiber reinforced composites. / Vas, L. M.; Pölöskei, K.; Felhõs, D.; Deák, T.; Czigány, T.

In: Express Polymer Letters, Vol. 1, No. 2, 02.2007, p. 109-121.

Research output: Contribution to journalArticle

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