PSI - Issue 73

ScienceDirect Structural Integrity Procedia 00 (2025) 000 – 000 Structural Integrity Procedia 00 (2025) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 73 (2025) 100–105

23rd International Conference on Modelling in Mechanics 2025 Identification of fracture characteristics of concrete mixtures with waste material using SARA software Kateřina Matýsková a * , Marie Horňáková b a Department of Building Materials and Diagnostics of Structures, Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic b Department of Structural Mechanics, Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic Abstract The article is focused on an advanced investigation focused on determining the fracture-plastic material model parameters of concrete, employing a numerical simulation approach. This research is particularly relevant given the increasing need to understand the mechanical behaviour of concrete under various conditions, especially when modified with waste materials. The study centres around the use of three-point bending tests, a well-established method for assessing the fracture properties of materials, which are further enhanced by the integration of numerical and stochastic inverse analysis. Two distinct types of concrete mixtures are investigated: a conventional reference concrete and a modified version in which 100% of the fine aggregate fraction is replaced with waste material sourced from CETRIS board production. The overall results suggest that such modifications could lead to more sustainable construction practices, aligning with global efforts to reduce the environmental impact of building materials while maintaining performance standards. © 202 5 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers Keywords: Concrete; CETRIS; fracture characteristics; waste material; sustainability. 1. Introduction The increasing demand for sustainable construction practices has stimulated extensive research into the use of alternative materials in concrete production. Among the promising approaches is the incorporation of industrial by- 23rd International Conference on Modelling in Mechanics 2025 Identification of fracture characteristics of concrete mixtures with waste material using SARA software Kateřina Matýsková a * , Marie Horňáková b a Department of Building Materials and Diagnostics of Structures, Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic b Department of Structural Mechanics, Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic Abstract The article is focused on an advanced investigation focused on determining the fracture-plastic material model parameters of concrete, employing a numerical simulation approach. This research is particularly relevant given the increasing need to understand the mechanical behaviour of concrete under various conditions, especially when modified with waste materials. The study centres around the use of three-point bending tests, a well-established method for assessing the fracture properties of materials, which are further enhanced by the integration of numerical and stochastic inverse analysis. Two distinct types of concrete mixtures are investigated: a conventional reference concrete and a modified version in which 100% of the fine aggregate fraction is replaced with waste material sourced from CETRIS board production. The overall results suggest that such modifications could lead to more sustainable construction practices, aligning with global efforts to reduce the environmental impact of building materials while maintaining performance standards. © 202 5 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers Keywords: Concrete; CETRIS; fracture characteristics; waste material; sustainability. 1. Introduction The increasing demand for sustainable construction practices has stimulated extensive research into the use of alternative materials in concrete production. Among the promising approaches is the incorporation of industrial by- © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the event organizers

* Corresponding author. E-mail address: katerina.matyskova@vsb.cz * Corresponding author. E-mail address: katerina.matyskova@vsb.cz

2452-3216 © 202 5 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers 2452-3216 © 202 5 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the event organizers 10.1016/j.prostr.2025.10.016