Cohesive fracture model for functionally graded fiber reinforced concrete

Kyoungsoo Park, Glaucio H. Paulino, Jeffery Roesler

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

A simple, effective, and practical constitutive model for cohesive fracture of fiber reinforced concrete is proposed by differentiating the aggregate bridging zone and the fiber bridging zone. The aggregate bridging zone is related to the total fracture energy of plain concrete, while the fiber bridging zone is associated with the difference between the total fracture energy of fiber reinforced concrete and the total fracture energy of plain concrete. The cohesive fracture model is defined by experimental fracture parameters, which are obtained through three-point bending and split tensile tests. As expected, the model describes fracture behavior of plain concrete beams. In addition, it predicts the fracture behavior of either fiber reinforced concrete beams or a combination of plain and fiber reinforced concrete functionally layered in a single beam specimen. The validated model is also applied to investigate continuously, functionally graded fiber reinforced concrete composites.

Original languageEnglish
Pages (from-to)956-965
Number of pages10
JournalCement and Concrete Research
Volume40
Issue number6
DOIs
Publication statusPublished - 2010 Jun

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Materials Science(all)

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