Issue 74

R. Vodi č ka et alii, Frattura ed Integrità Strutturale, 74 (2025) 206-216; DOI: 10.3221/IGF-ESIS.74.14

Implementation of interface damage model with friction to concrete FRP shear connector

Roman Vodi č ka, Eva Kormaníková, Daniel Dubecký, Michala Weissová Technical University of Košice, Slovakia

roman.vodicka@tuke.sk, http://orcid.org/0000-0002-7702-3126 eva.kormanikova@tuke.sk, http://orcid.org/0000-0003-0770-0504 daniel.dubecky@tuke.sk, http://orcid.org/ 0000-0003-3351-2814 michala.weissova@tuke.sk, https://orcid.org/0000-0001-8894-9234

Citation: Vodi č ka, R., Kormaníková, E., Dubecký, D., Weissová, M., Implementation of interface damage model with friction to concrete-FRP shear connector, Fracture and Structural Integrity, 74 (2025) 206-216.

Received: 27.06.2025 Accepted: 29.07.2025 Published: 04.09.2025 Issue: 10.2025

Copyright: © 2025 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

K EYWORDS . Cohesive damage model, Energy formulation, Concrete, FRP composite, Shear connector, Interface.

I NTRODUCTION

ibre-reinforced polymer (FRP) composites have become increasingly prominent across a range of industries, with significant impact in the fields of construction and bridge engineering. Their expanding utilisation in structural applications especially for the rehabilitation, strengthening, and retrofitting of existing bridge infrastructure represents a key area of advancement [1-3]. The integration of FRP materials enables the development of lightweight, high strength, and corrosion-resistant structural systems, which are especially advantageous in the harsh environmental conditions of bridge construction and long-term maintenance [4,5]. Ongoing research into the mechanical performance of reinforcing fibres, either synthetic or natural, continues to enhance the reliability and structural efficiency of FRP composites, ensuring their capability to sustain safety and performance under variable loading conditions [6,7]. Furthermore, F

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