Publication detail

Effect of Softening Function Type in the Double-K Fracture Model: Concrete Specimens with and without Fibres

HAVLÍKOVÁ, I. ŠIMONOVÁ, H. PAIL, T. NAVRÁTILOVÁ, E. MAJTÁNOVÁ, R. KERŠNER, Z.

Original Title

Effect of Softening Function Type in the Double-K Fracture Model: Concrete Specimens with and without Fibres

Type

journal article - other

Language

English

Original Abstract

Cement-based composites are traditionally a commonly used material in civil engineering structures. The basic representative of this type of material is concrete, a quasi-brittle composite in which crack resistance can be achieved by the addition of fibres. The double-K fracture model can be used to calculate the fracture-mechanical parameter values of structural concrete with and without polypropylene fibres. This model combines the concept of cohesive forces acting on the crack length with a criterion based on the stress intensity factor, using a ‘softening function’ to determine the cohesive part of fracture toughness. In this paper, authors determine the effect of the type of this softening function on the evaluation of fracture tests performed on sets of concrete specimens with and without polypropylene fibres.

Keywords

double-K fracture model, softening function, concrete, polypropylene fibre, fracture test

Authors

HAVLÍKOVÁ, I.; ŠIMONOVÁ, H.; PAIL, T.; NAVRÁTILOVÁ, E.; MAJTÁNOVÁ, R.; KERŠNER, Z.

RIV year

2014

Released

30. 8. 2014

Publisher

Association for Engineering Mechanics

Location

Praha

ISBN

1802-1484

Periodical

Engineering Mechanics

Year of study

21

Number

2

State

Czech Republic

Pages from

111

Pages to

119

Pages count

9

BibTex

@article{BUT110956,
  author="Ivana {Havlíková} and Hana {Šimonová} and Tomáš {Pail} and Eva {Soukupová} and Romana Viktória {Majtánová} and Zbyněk {Keršner}",
  title="Effect of Softening Function Type in the Double-K Fracture Model: Concrete Specimens with and without Fibres",
  journal="Engineering Mechanics",
  year="2014",
  volume="21",
  number="2",
  pages="111--119",
  issn="1802-1484"
}