MATEC Web Conf.
Volume 323, 202010th International Conference of Advanced Models and New Concepts in Concrete and Masonry Structures (AMCM 2020)
|Number of page(s)||8|
|Section||Adnanced Models and New Concepts in Concrete Structures|
|Published online||05 October 2020|
Complex multilevel fracture tests of concrete: basic mechanical fracture parameters of standard size specimens
Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic
* Corresponding author: firstname.lastname@example.org
The aim of the current research is to develop a complex multilevel approach for the experimental–computational determination of mechanical fracture parameters of concrete as a typical quasi-brittle material. This includes testing, advanced evaluation and soft computing-based identification of specimens of multiple sizes in multiple test configurations and analyses of fracture processes using multiscale modelling approaches. The evaluation of a part of an extensive experimental program is presented in this paper. The basic mechanical fracture parameters of the investigated concrete determined on standard test specimens with nominal dimensions of 100 × 100 × 400 mm subjected to the standard three-point bending fracture test are introduced. The results of three different sets of specimens provided with different depths of the initial notch are compared in terms of absolute values of the selected mechanical fracture parameters. The results indicate different sensitivity of particular mechanical fracture parameters in relation to the depth of the initial notch.
© The Authors, published by EDP Sciences, 2020
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