Mechanics of Composite Materials

, Volume 43, Issue 5, pp 479–486 | Cite as

Fracture analysis of a high-strength concrete and a high-strength steel-fiber-reinforced concrete

  • L. E. T. Ferreira


This paper addresses the use of R-curves to study the fracture behavior of high-strength concrete and steel-fiber-reinforced concrete subjected to crack ing in a three-point bending configuration. The R-curves are modeled through an effective approach based on the equations of linear-elastic fracture mechanics (LEFM), which relates the applied load to the fundamental displacements of notched-through beams loaded monotonically. It is initially shown that, for quasi-brittle materials, the R-curves responses can be evaluated in a quasi-analytical way, using the load-crack mouth opening, the load-load line displacement, or exclusively the displacement responses obtained experimentally. Afterward, the methodology is used to obtain the fracture responses of high-strength and fiber-reinforced concretes, up to the final stages of rupture.


R-curve quasi-brittle fracture fracture toughness fiber-reinforced concrete 


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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • L. E. T. Ferreira
    • 1
  1. 1.School of Engineering of São CarlosUniversity of São PauloBrazil

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