The objective of the present paper is to identify experimentally and theoretically differing failure mechanisms in reinforced concrete beams subjected to four-point bending for a separate variation of the depth and length at the constant thickness. Experiments were performed on reinforced concrete beams under four-point bending. Different failure mechanisms included steel yielding, diagonal tension or shear- compression depending upon the ratio of the shear to the beam depth a/D. The shear strength of beams evidently decreased with increasing a/D-ratio. The experimental results were numerically simulated using two-dimensional finite element analyses under plane stress conditions, based on a coupled elasto-plastic- damage constitutive model for concrete that was enhanced by non-locality in the softening regime. The numerical calculation results satisfactorily captured both the experimental shear strength and failure mechanisms.
- Publikacja w czasopiśmie
- materiały konferencyjne indeksowane w Web of Science
- Tytuł wydania:
- Conference on Computational Modelling of Concrete and Concrete Structures (EURO-C) strony 651 - 661
- Rok wydania:
- Opis bibliograficzny:
- Suchorzewski J., Marzec I., Korol E., Tejchman-Konarzewski A..: Investigations on strength and fracture in RC beams scaled along height or length, W: Conference on Computational Modelling of Concrete and Concrete Structures (EURO-C), 2018, CRC Press,.
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