Experimental and numerical investigation on residual behavior of high strength reinforced concrete beams subjected to different impact velocities

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dc.authorid0000-0002-4853-7910
dc.authorid0000-0003-4070-5534
dc.authorid0000-0003-3253-3875
dc.contributor.authorDok, Gokhan
dc.contributor.authorCaglar, Naci
dc.contributor.authorIlki, Alper
dc.contributor.authorYilmaz, Cemal
dc.contributor.authorSerdar, Ahmet Hamdi
dc.date.accessioned2026-02-08T15:15:12Z
dc.date.available2026-02-08T15:15:12Z
dc.date.issued2026
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThis study investigates the dynamic and residual behavior of full-scale high-strength reinforced concrete (RC) beams subjected to low-velocity impact. The aim is to assess both the immediate response under impact and the residual load-carrying capacity after impact, providing a basis for evaluating the post-impact reliability of RC members. Experimental tests were performed by dropping a constant 360 kg mass from heights of 1.5 m, 2.0 m, and 3.0 m, generating distinct impact energies. Beams with different longitudinal reinforcement ratios were designed to represent varying ductility and load-carrying capacities. Dynamic parameters such as impact force, acceleration, displacement, and crack development were measured during impact, while subsequent three-point bending tests evaluated the residual stiffness, strength, and ductility of the impacted beams in comparison with undamaged reference specimens. The results revealed significant reductions in mechanical properties, including stiffness and energy absorption, with a clear tendency for failure modes to shift from flexure to shear under higher impact energies. Residual displacement ductility was substantially diminished, indicating limited serviceability after severe impacts. To complement the experiments, validated finite element models were developed in ABAQUS using a two-step procedure, transferring the damaged state from impact simulations to quasi-static loading. Numerical predictions closely matched experimental findings, with less than 3 % deviation. The combined results highlight the necessity of reassessing the post-impact performance of RC beams and offer practical guidance for improving design provisions against extreme loading conditions.
dc.identifier.doi10.1016/j.engfailanal.2025.110176
dc.identifier.issn1350-6307
dc.identifier.issn1873-1961
dc.identifier.scopus2-s2.0-105018586259
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.engfailanal.2025.110176
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5662
dc.identifier.volume183
dc.identifier.wosWOS:001598026800001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofEngineering Failure Analysis
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectImpact velocity
dc.subjectHigh-strength concrete
dc.subjectFlexure
dc.subjectShear
dc.subjectFailure mechanism
dc.subjectReinforced concrete beam
dc.subjectResidual capacity
dc.titleExperimental and numerical investigation on residual behavior of high strength reinforced concrete beams subjected to different impact velocities
dc.typeArticle

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