PSI - Issue 72

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ScienceDirect

Procedia Structural Integrity 72 (2025) 453–457

12th Annual Conference of Society for Structural Integrity and Life (DIVK12) Measurement of technological strains and defect detection using fiber-optic sensors embedded in concrete and cement mixture samples Andrey Yu. Fedorov a, *, Grigorii S. Serovaev a , Natalia A. Kosheleva a a Institute of Continuous Media Mechanics UB RAS, 1 Academician Korolev Street, Perm 614018, Russian Federation Abstract This paper presents various applications of fiber-optic sensors (FOS) in concrete and cement mixture samples, demonstrating new capabilities for assessing the mechanical state of structures. The geometrical dimensions and physical characteristics of FOS allow these sensors to be embedded into materials during the production stage, provided that the parameters of technological processes do not compromise sensor functionality. The paper presents results from long-term measurements of technological strains in concrete samples and strain measurements by embedded FOS in sample under force loading. Additionally, using cement mixture samples, the research demonstrates a damage registration approach based on FOS’s ability to collect extensive strain data fro m various zones within the sample. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Aleksandar Sedmak, Branislav Djordjevic, Simon Sedmak Dr. Simon Sedmak, ssedmak@mas.bg.ac.rs, Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia

Keywords: deformations; defects; fiber-optic sensors; strains; concretes; cement mixes

1. Introduction Concrete and cement mixes form the foundation of various engineering structures. The mechanical properties of these materials depend on external factors, such as humidity and temperature. Additionally, the mechanical state of the structure can significantly depend on the parameters of the mechanical process used in concrete product manufac turing. For critical structures, monitoring the mechanical state is therefore necessary. Classical structural monitoring

∗ Corresponding author. Tel.: + 7-342-273-8330; fax: + 7-342-237-84-87. E-mail address: fedorov@icmm.ru

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Aleksandar Sedmak, Branislav Djordjevic, Simon Sedmak Dr. Simon Sedmak, ssedmak@mas.bg.ac.rs, Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia 10.1016/j.prostr.2025.08.126