{"id":6397,"date":"2026-05-30T02:48:29","date_gmt":"2026-05-29T23:48:29","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=6397"},"modified":"2026-06-01T15:52:13","modified_gmt":"2026-06-01T12:52:13","slug":"10-52150-2522-9117-2026-40-014","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=6397&lang=en","title":{"rendered":"10.52150\/2522-9117-2026-40-014"},"content":{"rendered":"\n

Y. D. Piliuhin<\/strong>1,*<\/sup>, Ph. D. Student, ORCID 0000-0002-3639-0085<\/p>\n\n\n\n

1 <\/sup>Dnipro University of Technology<\/em>
* <\/sup>Corresponding author: piliuhyn.y.d@nmu.one<\/em><\/p>\n\n\n\n

COMPREHENSIVE MODELING OF THE PROPERTIES OF GLASS FIBER REINFORCED POLYMER REINFORCEMENT IN CONCRETE ELEMENTS UNDER THERMAL AND CYCLIC LOADING<\/h2>\n\n\n\n

Abstract.<\/strong> The paper addresses the problem of improving the durability and thermal resistance of glass fiber reinforced polymer reinforcement in concrete structures subjected to thermo-mechanical and cyclic loading. The relevance of the study is determined by the need to replace traditional steel reinforcement with corrosion-resistant materials possessing enhanced performance under elevated temperatures and fatigue conditions. The aim of the research is to develop a mathematical and materials-science-based methodology that integrates mathematical modeling, microstructural design, and structural formation processes for predicting the properties of composite reinforcement. The research methodology is based on a two-stage numerical approach, including transient thermal analysis using a standard fire temperature curve and subsequent mechanical modeling of the stress-strain state of the \u201cconcrete\u2013reinforcement\u201d system. The behavior of materials is described using the concrete damaged plasticity model, elastoplastic steel, and orthotropic glass fiber reinforced polymer material with temperature-dependent degradation. Micromechanical relations based on the rule of mixtures and efficiency factors were applied to quantify the influence of fiber composition, polymer matrix properties, and interfacial interaction on strength and fatigue behavior. The results demonstrate that structural formation processes and microstructural design play a decisive role in determining the effective performance of composite reinforcement. It is shown that the use of fibers with enhanced mechanical strength and improved resistance to alkaline environments, high glass transition temperature matrices, and nanomodifiers significantly improves thermal stability and fatigue resistance. For the first time, an integrated mathematical model has been proposed that simultaneously accounts for thermal, mechanical, and microstructural factors affecting material performance. The practical significance of the study lies in the possibility of applying the obtained results for engineering design of concrete structures operating under aggressive environmental conditions, elevated temperatures, and cyclic loading, ensuring increased service life and structural reliability.<\/p>\n\n\n\n

Key words:<\/strong> glass fiber reinforced polymer, mathematical modeling, microstructural design, structural formation, fatigue behavior, thermo-mechanical loading, composite materials.<\/p>\n\n\n\n

For citation:<\/strong> Piliuhin, Y. D. (2026). \u0421omprehensive modeling of the properties of glass fiber reinforced polymer reinforcement in concrete elements under thermal and cyclic loading. Fundamental and applied problems of ferrous metallurgy<\/em>, 40, 226-236. https:\/\/doi.org\/10.52150\/2522-9117-2026-40-014<\/p>\n\n\n\n

References<\/strong><\/p>\n\n\n\n

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  1. Piliuhin, Ye. D., & Rott, N. O. (2024). Prospects for the application of composite reinforcement in the construction industry. Bulletin of Kharkiv National Automobile and Highway University<\/em>, 107, 62\u201368. https:\/\/doi.org\/10.30977\/BUL.2219-5548.2024.107.0.62<\/a><\/li>\n\n\n\n
  2. Hremliak, I. P., Tymoshenko, O. V., & Kulak, V. V. (2020). Comparison of properties of steel and glass fiber reinforcement for road construction. Collection of scientific works of the V.M. Shymanovskyi Ukrainian Institute of Steel Structures<\/em>, 25\u201326.<\/li>\n\n\n\n
  3. Lei, Z., Luo, J., Zhang, S., Wang, E., & Huang, H. (2024). Mechanical properties of GFRP bars exposed to natural erosion environment: A case study. Case Studies in Construction Materials<\/em>, 21, e03734. https:\/\/doi.org\/10.1016\/j.cscm.2024.e03734<\/a><\/li>\n\n\n\n
  4. Porter, M. L., & Barnes, B. A. (1998). Accelerated aging degradation of glass fiber composites. In Proceedings of the Second International Conference on Composites in Infrastructure (ICCI\u201998)<\/em> (Vol. 2, pp. 446\u2013459).<\/li>\n\n\n\n
  5. Colombo, C., Libonati, F., & Vergani, L. (2012). Fatigue damage in GFRP: Experiments and modeling. International Journal of Structural Integrity<\/em>, 3(2), 127\u2013143. https:\/\/doi.org\/10.1108\/17579861211242795<\/a><\/li>\n\n\n\n
  6. Yang, F., & Pitchumani, R. (2003). Nonisothermal healing and interlaminar bond strength evolution during thermoplastic matrix composites processing. Polymer Composites<\/em>, 24(2), 263\u2013278. https:\/\/doi.org\/10.1002\/pc.10023<\/a><\/li>\n\n\n\n
  7. Cao, Z., Dong, M., Liu, K., & Fu, H. (2020). Temperature field in the heat transfer process of PEEK thermoplastic composite fiber placement. Materials<\/em>, 13(19), 4417. https:\/\/doi.org\/10.3390\/ma13194417<\/a><\/li>\n<\/ol>\n\n\n\n

    \u0420\u0443\u043a\u043e\u043f\u0438\u0441 \u043d\u0430\u0434\u0456\u0439\u0448\u043e\u0432 \u0434\u043e \u0440\u0435\u0434\u0430\u043a\u0446\u0456\u0457 \/ Received  07.03.2026<\/em>
    \u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u043d\u043e \u0434\u043e \u0434\u0440\u0443\u043a\u0443 \/ Accepted 28.05.2026<\/em>
    \u041e\u043f\u0443\u0431\u043b\u0456\u043a\u043e\u0432\u0430\u043d\u043e \/ Published 30.05.2026<\/em><\/p>\n\n\n\n

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    Y. D. Piliuhin1,*, Ph. D. Student, ORCID 0000-0002-3639-0085 1 Dnipro University of Technology* Corresponding author: piliuhyn.y.d@nmu.one COMPREHENSIVE MODELING OF THE PROPERTIES OF GLASS FIBER REINFORCED POLYMER REINFORCEMENT IN CONCRETE ELEMENTS UNDER THERMAL AND CYCLIC LOADING Abstract. The paper addresses the problem of improving the durability and thermal resistance of glass fiber reinforced polymer reinforcement in concrete structures […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6397","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6397"}],"version-history":[{"count":2,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6397\/revisions"}],"predecessor-version":[{"id":6955,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6397\/revisions\/6955"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}