Jul 2026· Journal of Intelligent Decision Making and Information Science· Vol 3, pp. 614-620· 0 citations· 12 references
Abstract
The quasi-brittle nature of the concrete materials causes progressive propagation of crack under mechanical load in concrete beams. In this paper, a mathematical model based on fracture mechanics is presented, which is suitable to analyze the behavior of crack initiation, the stress distribution and the crack growth in concrete beams. The proposed scheme combines the Linear Elastic Fracture Mechanics (LEFM) with the cohesive nonlinear model of fracture, to investigate stress intensity factors, strain energy release rates, and fracture stability conditions when the load increases. The mathematical formulation of governing elasticity equations, crack-tip stress fields and fracture propagation criteria allow the prediction of structural degradation. Experimental fracture parameters show that with applied loading, the length of the crack and the energy released increases with fracture. The results show that the proposed model could accurately predict the crack propagation behavior and structural instability, which could be used to improve the failure assessment accuracy of concrete structural systems.
Understanding dynamic fracture in both brittle and ductile materials has attracted considerable attention from engineers and researchers due to its practical importance. In ductile materials, crack initiation and growth are strongly influenced by plastic deformation and the associated microstructural damage, which grad...
K. S. Reddy, A. Rajagopal, S. Natarajan· International Journal of Str...· 0 citations
This study examines the fracture and mechanical performance of hybrid fiber-reinforced high-strength concrete (HFRHSC) with different water-to-binder (W/B) ratios. Six mixtures incorporating hybrid combinations of steel, polymer, glass, and basalt fibers were investigated at W/B ratios of 0.42, 0.31, and 0.25. The sy...
P. Smarzewski, T. A. Tawfik, Mohamed Abdellatief· International Journal of Civ...· 0 citations
To mitigate the violent movement of overlying strata in goaf areas, rock–concrete composite support systems are widely utilized. However, the mechanical behavior of such systems under the influence of complex pre-existing defects, such as arc-shaped fractures, remains insufficiently understood. This study aims to c...
Shu-Bin Zhang, Hong-Kai Zhao, B. Hong et al.· International Journal of Geo...· 0 citations
The long‑term performance and structural integrity of steam‑turbine discs are strongly influenced by crack‑growth behavior under combined thermal stresses and mechanical loading. In this study, a comprehensive analytical framework based on finite element analysis (FEA), mixed‑mode fracture‑mechanics evaluation (Modes I...
Mohammad Farahi, Arina Agharafiee, Amir Mahdi Ebrahimi et al.· Journal of Modern Mechanical...· 0 citations
The size effect, defined as the reduction in nominal structural strength with increasing size, is a critical phenomenon in concrete and other quasi-brittle materials, governed by fracture processes such as crack initiation, propagation, and localization within the fracture process zone (FPZ). As the structural size inc...
D. S. Bomfim, F. Gatuingt, Humberto Breve Coda et al.· International Journal of Fra...· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
