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dc.contributor.advisorSaatcı, Selçuken_US
dc.contributor.advisorTaşdemirci, Alperen_US
dc.contributor.authorÇankaya, Mehmet Alper-
dc.identifier.citationÇankaya, M. A. (2017). Modeling of concrete under high strain rate conditions using nonlinear finite element method. Unpublished doctoral dissertation, İzmir Institute of Technology, İzmir, Turkeyen_US
dc.descriptionThesis (Doctoral)--Izmir Institute of Technology, Civil Engineering, Izmir, 2017en_US
dc.descriptionIncludes bibliographical references (leaves: 86-88)en_US
dc.descriptionText in English; Abstract: Turkish and Englishen_US
dc.description.abstractIn this study, a comprehensive experimental and numerical study was undertaken to model concrete under high strain rate conditions. Concrete cylinder specimens, all obtained from the same batch, were tested both under ststic and high strainrate conditions. 15 eylinder specimens were tested under 3.55x10-5, 3.23x10-4, 2.97x10-3 1/s strain rates, whereas three identical specimens were tested using a Split Hopkinson Pressure Bar SHPB) tes setup under 235, 245, 260 1/s strain rates. Used SHPB setup was modified to include quartz crystal stress developed in the specimens werw directly obtained, eliminating common isssues regarding stress readings in a conventional setup. Stress-strain behavior and other material parameters that would be necessary for numerical modeling were obtained under various strain rates. Test samples were modeled using an explicit finite element program LS-DYNA, using Holmquist-Johnson-Cook model with experimentally obtained model parameters. To verify the obtained parameters further, drop tower test on concrete plates were also performed and modeled. Numerical modeling of both SHPB samples and concrete plates were successful in capturing the observed behavior. The study also provided the literature with a reliable test data with complete parameters that can be used for further studies in the area.en_US
dc.format.extentviii, 88 leavesen_US
dc.publisherIzmir Institute of Technologyen_US
dc.subjectReinforced concreteen_US
dc.subjectNonlinear finite element methoden_US
dc.subjectSplit Hopkinson Pressure Baren_US
dc.titleModeling of concrete under high strain rate conditions using nonlinear finite element methoden_US
dc.title.alternativeBetonun yüksek hızlı şekil değiştirme koşulları altında doğrusal olmayan sonlu elemanlar yöntemi ile modellenmesien_US
dc.typeDoctoral Thesisen_US
dc.institutionauthorÇankaya, Mehmet Alper-
dc.departmentThesis (Doctoral)--İzmir Institute of Technology, Civil Engineeringen_US
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item.openairetypeDoctoral Thesis-
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