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Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading

Existing literatures on combined effects of blast-impact loadings on steel-concrete composite beams are limited. In this study, behavior of steel-concrete composite beam subjected to combined blast-impact loading was investigated using LS-DYNA nonlinear FEA software program. The accuracy and reliabi...

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Detalles Bibliográficos
Autores principales: Mohammed, Tesfaye Alemu, Abebe, Solomon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9508491/
https://www.ncbi.nlm.nih.gov/pubmed/36164528
http://dx.doi.org/10.1016/j.heliyon.2022.e10672
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author Mohammed, Tesfaye Alemu
Abebe, Solomon
author_facet Mohammed, Tesfaye Alemu
Abebe, Solomon
author_sort Mohammed, Tesfaye Alemu
collection PubMed
description Existing literatures on combined effects of blast-impact loadings on steel-concrete composite beams are limited. In this study, behavior of steel-concrete composite beam subjected to combined blast-impact loading was investigated using LS-DYNA nonlinear FEA software program. The accuracy and reliability of developed FEA model was validated using experimental data reported in literature. Parametric studies were performed on impacting speed, concrete strength, various characteristics of H-structural steel, yield strength of studs and steel rebars to get insight into performance of composite beam subjected to combined blast impact loading. FEA results revealed that increase in specified cylindrical compressive strength of concrete, yield stress, flange and web thicknesses of H-type structural steel beam significantly improved dynamic response of a steel-concrete composite beam under combined impact-blast load case whereas yield stress of studs, and reinforcement steel bars showed insignificant contribution. Moreover, increasing impactor’s initial velocity significantly affects dynamic response of a SCC beam under combined blast-impact loading.
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spelling pubmed-95084912022-09-25 Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading Mohammed, Tesfaye Alemu Abebe, Solomon Heliyon Research Article Existing literatures on combined effects of blast-impact loadings on steel-concrete composite beams are limited. In this study, behavior of steel-concrete composite beam subjected to combined blast-impact loading was investigated using LS-DYNA nonlinear FEA software program. The accuracy and reliability of developed FEA model was validated using experimental data reported in literature. Parametric studies were performed on impacting speed, concrete strength, various characteristics of H-structural steel, yield strength of studs and steel rebars to get insight into performance of composite beam subjected to combined blast impact loading. FEA results revealed that increase in specified cylindrical compressive strength of concrete, yield stress, flange and web thicknesses of H-type structural steel beam significantly improved dynamic response of a steel-concrete composite beam under combined impact-blast load case whereas yield stress of studs, and reinforcement steel bars showed insignificant contribution. Moreover, increasing impactor’s initial velocity significantly affects dynamic response of a SCC beam under combined blast-impact loading. Elsevier 2022-09-17 /pmc/articles/PMC9508491/ /pubmed/36164528 http://dx.doi.org/10.1016/j.heliyon.2022.e10672 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Research Article
Mohammed, Tesfaye Alemu
Abebe, Solomon
Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading
title Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading
title_full Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading
title_fullStr Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading
title_full_unstemmed Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading
title_short Numerical investigation of steel-concrete composite (SCC) beam subjected to combined blast-impact loading
title_sort numerical investigation of steel-concrete composite (scc) beam subjected to combined blast-impact loading
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9508491/
https://www.ncbi.nlm.nih.gov/pubmed/36164528
http://dx.doi.org/10.1016/j.heliyon.2022.e10672
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