Unidirectional CFRP Reinforcement in Buried Pipelines: Performance Limits at Strike-Slip Fault Crossings

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dc.contributor.authorKaya, Ercan Serif
dc.contributor.authorAcar, Volkan
dc.contributor.authorCakir, Ferit
dc.contributor.authorTaciroglu, Ertugrul
dc.date.accessioned2026-01-24T12:30:50Z
dc.date.available2026-01-24T12:30:50Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractThe mechanical behavior and seismic performance of buried pipelines have been extensively investigated in recent years. However, to the best of the author's knowledge, research studies on the performance limits of these pipelines, particularly wrapped with unidirectional carbon fiber-reinforced polymer (CFRP) remain limited. This study examines the performance limits of buried steel pipelines reinforced with unidirectional CFRP as they cross strike-slip fault lines. The investigation focuses on the influence of fault angles and evaluates the effectiveness of CFRP reinforcement under these conditions. CFRP material properties were experimentally characterized by standardized tensile and three-point bending tests. A three-dimensional finite element model was developed using ABAQUS to simulate soil-pipe interaction across fault crossing scenarios with angles ranging from 0 degrees to 40 degrees. The study also considers various CFRP configurations, including single-layer (t = 1.5 mm) and four-layer (t = 6.0 mm) wrappings, with fiber orientations of 0 degrees and 90 degrees. Damage mechanisms such as local buckling, ovalization, and composite rupture were analyzed to assess performance limits under different fault angles. The results demonstrate that even a single layer of CFRP wrapping significantly enhances the displacement capacity of the pipeline compared to conventional steel pipelines. Reinforced configurations showed reduced stress concentrations and more ductile behavior under both tensile and compressive loading. These findings offer valuable insights into optimizing CFRP retrofitting strategies and enhancing the resilience and safety of buried pipeline infrastructure in seismically active regions.
dc.identifier.doi10.1002/pc.70749
dc.identifier.issn0272-8397
dc.identifier.issn1548-0569
dc.identifier.scopus2-s2.0-105025219686
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/pc.70749
dc.identifier.urihttps://hdl.handle.net/20.500.12868/5478
dc.identifier.wosWOS:001642341700001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofPolymer Composites
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260121
dc.subjectburied pipelines
dc.subjectcomposite materials
dc.subjectfault crossing
dc.subjectperformance limits
dc.subjectunidirectional CFRP
dc.subjectwrapping
dc.titleUnidirectional CFRP Reinforcement in Buried Pipelines: Performance Limits at Strike-Slip Fault Crossings
dc.typeArticle

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