Representative volume element in the mechanics of reinforced concrete
https://doi.org/10.33979/2073-7416-2025-122-6-14-24
Abstract
The article presents a novel computational framework for developing constitutive models of reinforced concrete (RC) behavior, based on the concept of a Representative Volume Element (RVE) for simulating characteristic complex stress states in structural members. The framework is founded on the idea of block-based physical models of material response, combining the energy approach of fracture mechanics for cracked RC with deformation models of reinforced concrete theory. To determine the stiffness and crack resistance of RC members in regions subjected to combined bending moments and shear forces, a "single composite strip" model within cross-sections containing inclined cracks is proposed. The opening of normal and inclined cracks is simulated using RVEs represented by a reinforced prism and a double-cantilever element (DCE), respectively. The stress-strain state in the vicinity of a crack is determined taking into account a deformation effect in the fracture mechanics of RC, discovered by the author.
About the Author
V. I. Kolchunov
Moscow State University of Civil Engineering (NIU MGSU); Research Institute of Construction Physics of the Russian Academy of Architecture and Construction Sciences
Russian Federation
Russian Federation
Kolchunov Vladimir Iv., Corresponding Member of the Russian Academy of Architecture and Construction Sciences, doctor of technical sciences, professor, professor of the Department of Engineering Graphics and Computer Modeling; leading researcher
Moscow
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Review
For citations:
Kolchunov V.I. Representative volume element in the mechanics of reinforced concrete. Building and Reconstruction. 2025;(6):14-24. (In Russ.) https://doi.org/10.33979/2073-7416-2025-122-6-14-24
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