REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

DISCRETIZATION OF THE FINITE ELEMENT NETWORK ALONG THE CRACK LINE IN THE CONCRETE

EDVIN BOLIĆ

University in Bihać – Faculty of Technical Engineering Bihać, Bihać, edvinbolic@hotmail.com

DŽENANA GAČO

University in Bihać – Faculty of Technical Engineering Bihać, Bihać, dzgaco@bih.net.ba

fadil islamović

University in Bihać – Faculty of Technical Engineering Bihać, Bihać, f.islam@bih.net.ba

MERSIDA MANJGO

University in Mostar – Faculty of Mechanical Engineering, Mostar, mersida.manjgo@unmo.ba

Abstract: The fracture mechanics of concrete is connected to two things that are regularly subject to research: the length of the fracture process zone (FPZ) and the width of the fracture process zone (FPZ). Following the examination of this problem, this paper describes the process of discretization of the crack in the concrete using finite element method and its application for the determination of concrete fracture mechanics parameters. The results of testing on concrete samples made of concrete grade C30/37 of river gravel and crushed stone were processed. The paper demonstrates the principle of modeling such problems.

Keywords: concrete, fracture mechanics, fracture parameters, crack length, linear elastic fracture mechanics (LEFM) , non-linear fracture mechanics (NFM) , fracture process zone (FPZ) , finite element method (FEM).