A Numerical Study of Crack Mixed Mode Model in Concrete Material Subjected to Cyclic Loading

authored by: Omar Alrayes, Carsten Könke, Khader M. Hamdia
Abstract: In quasi-brittle materials such as concrete, numerical methods are frequently used to simulate the crack propagation for monotonic loading. However, further research and action are required to better understand the fracture properties under cyclic loading. For this purpose, in this study, we present numerical simulations of mixed-mode crack propagation in concrete using the scaled boundary finite element method (SBFEM). The crack propagation is developed based on a cohesive crack approach combined with the thermodynamic framework of a constitutive concrete model. For validation, two benchmark crack-mode examples are modelled under monotonic and cyclic loading conditions. The numerical results are compared against the results from available publications. Our approach revealed good consistency compared to the test measurements from the literature. The damage accumulation parameter was the most influential variable on the load-displacement results. The proposed method can provide a further investigation of crack growth propagation and damage accumulation for cyclic loading within the SBFEM framework.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): Bauhaus-Universität Weimar
Type: Article
Journal: MATERIALS
Volume: 16
ISSN: 1996-1944
Publication date: 25.02.2023
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Condensed Matter Physics, General Materials Science
Electronic version(s): https://doi.org/10.3390/ma16051916 (Access: Open)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{3f48bbe55cac419387025a8cab446f53,
title = "A Numerical Study of Crack Mixed Mode Model in Concrete Material Subjected to Cyclic Loading",
abstract = "In quasi-brittle materials such as concrete, numerical methods are frequently used to simulate the crack propagation for monotonic loading. However, further research and action are required to better understand the fracture properties under cyclic loading. For this purpose, in this study, we present numerical simulations of mixed-mode crack propagation in concrete using the scaled boundary finite element method (SBFEM). The crack propagation is developed based on a cohesive crack approach combined with the thermodynamic framework of a constitutive concrete model. For validation, two benchmark crack-mode examples are modelled under monotonic and cyclic loading conditions. The numerical results are compared against the results from available publications. Our approach revealed good consistency compared to the test measurements from the literature. The damage accumulation parameter was the most influential variable on the load-displacement results. The proposed method can provide a further investigation of crack growth propagation and damage accumulation for cyclic loading within the SBFEM framework.",
keywords = "cohesive zone method, cyclic loading, mixed mode crack propagation, SBFEM",
author = "Omar Alrayes and Carsten K{\"o}nke and Hamdia, {Khader M.}",
note = "Funding Information: Khader M. Hamdia thanks the support by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Projectnumber 492535144.",
year = "2023",
month = feb,
day = "25",
doi = "10.3390/ma16051916",
language = "English",
volume = "16",
journal = "MATERIALS",
issn = "1996-1944",
publisher = "MDPI AG",
number = "5",
}