Finite Element Modeling of the behavior of Hybrid-Fiber Reinforced Concrete under Triaxial Compression

• Published in: Numerical Methods in Civil Engineering Vol. 9; no. 3; pp. 63 - 74
• Main Author: Ali Naserifar
• Format: Journal Article
• Language: English
• Published: K. N. Toosi University of Technology 01.03.2025
• Subjects: constitutive model; fiber reinforced concrete; tri-axial behavior
• ISSN: 2345-4296; 2783-3941
• DOI: 10.61186/NMCE.2312.1039

Concrete is the most popular building material in the worldwide. However, its low tensile strength causes cracks to initiate in the low step of loading. Today, fibers of various types are used in concrete mixtures to improve the behavior of it. However, the behavior of fiber reinforced concrete has been studied frequently but a numerical model that can predict the behavior of fiber reinforced concrete well is under research. In this research, the integration algorithm of the structural equations and the implementation of the William-Warnke behavioral model for fiber reinforced concrete are presented. The aforementioned behavioral model is coded and linked to ABQUS software as a subprogram and used in the analysis of boundary value problems. To carry out validation, several real triaxial tests have been simulated and compared with the results of real tests. The results show that the coded model simulates the laboratory behavior of fiber reinforced concrete as well and can be used in modeling real projects.