Effect of softening function type in the double-K fracture model: concrete specimens with and without polypropylene fibres

Title:

Effect of softening function type in the double-K fracture model: concrete specimens with and without polypropylene fibres

Creator:

Havlíková, Ivana, Šimonová, Hana, Pail, Tomáš, Navrátilová, Eva, Majtánová, Romana Viktória, and Keršner, Zbyněk

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:04724e50-8f95-4129-b3e0-72741c97cb7a
uuid:04724e50-8f95-4129-b3e0-72741c97cb7a

Subject:

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

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Content-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 popypropylene 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. and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

111-119

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2014 Volume:21 | Number:2

Harvested from:

CDK

Metadata only:

false