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Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research

The effect of inducing circular holes into aluminum wrapped with glass/epoxy (Al/GFRP) pipes was investigated. Intact and holed specimens were evaluated in quasi-static axial compression after being constructed using the wet wrapping procedure. The effect of the induced holes' parameters i.e.,...

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Autores principales: El-baky, Marwa A. Abd, Allah, Mahmoud M. Awd, kamel, Madeha, Abd-Elaziem, Walaa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9726874/
https://www.ncbi.nlm.nih.gov/pubmed/36474023
http://dx.doi.org/10.1038/s41598-022-25679-0
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author El-baky, Marwa A. Abd
Allah, Mahmoud M. Awd
kamel, Madeha
Abd-Elaziem, Walaa
author_facet El-baky, Marwa A. Abd
Allah, Mahmoud M. Awd
kamel, Madeha
Abd-Elaziem, Walaa
author_sort El-baky, Marwa A. Abd
collection PubMed
description The effect of inducing circular holes into aluminum wrapped with glass/epoxy (Al/GFRP) pipes was investigated. Intact and holed specimens were evaluated in quasi-static axial compression after being constructed using the wet wrapping procedure. The effect of the induced holes' parameters i.e., hole diameter (d), number of holes (n), the hole position to specimen height ratio (L/H), on the crashworthiness of Al/GFRP structures was investigated. Results indicated that the existence of the cutouts visibly affects the values of crushing parameters. Increasing (d) remarkably reduces the total absorbed energy (U) and enhances the crushing force efficiency (CFE) of Al/GFRP pipes. Introducing two holes in two opposite faces with keeping their location constant reduces initial peak crush force [Formula: see text] , mean crush force [Formula: see text] , and U of Al/GFRP pipes but increases CFE. As the hole location goes to the lower edge of the pipe i.e., L/H increases, U obviously increases. The specimens with 4 mm holes in one side at medium height and specimens with 12 mm holes on one side at L/H = 0.8 had the best crushing parameters, respectively. The adequate design of the induced cutouts in thin-walled constructions is valuable to enhance the crashworthy performance of engineering structures.
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spelling pubmed-97268742022-12-08 Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research El-baky, Marwa A. Abd Allah, Mahmoud M. Awd kamel, Madeha Abd-Elaziem, Walaa Sci Rep Article The effect of inducing circular holes into aluminum wrapped with glass/epoxy (Al/GFRP) pipes was investigated. Intact and holed specimens were evaluated in quasi-static axial compression after being constructed using the wet wrapping procedure. The effect of the induced holes' parameters i.e., hole diameter (d), number of holes (n), the hole position to specimen height ratio (L/H), on the crashworthiness of Al/GFRP structures was investigated. Results indicated that the existence of the cutouts visibly affects the values of crushing parameters. Increasing (d) remarkably reduces the total absorbed energy (U) and enhances the crushing force efficiency (CFE) of Al/GFRP pipes. Introducing two holes in two opposite faces with keeping their location constant reduces initial peak crush force [Formula: see text] , mean crush force [Formula: see text] , and U of Al/GFRP pipes but increases CFE. As the hole location goes to the lower edge of the pipe i.e., L/H increases, U obviously increases. The specimens with 4 mm holes in one side at medium height and specimens with 12 mm holes on one side at L/H = 0.8 had the best crushing parameters, respectively. The adequate design of the induced cutouts in thin-walled constructions is valuable to enhance the crashworthy performance of engineering structures. Nature Publishing Group UK 2022-12-06 /pmc/articles/PMC9726874/ /pubmed/36474023 http://dx.doi.org/10.1038/s41598-022-25679-0 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
El-baky, Marwa A. Abd
Allah, Mahmoud M. Awd
kamel, Madeha
Abd-Elaziem, Walaa
Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research
title Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research
title_full Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research
title_fullStr Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research
title_full_unstemmed Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research
title_short Energy absorption characteristics of E-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research
title_sort energy absorption characteristics of e-glass/epoxy over-wrapped aluminum pipes with induced holes: an experimental research
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9726874/
https://www.ncbi.nlm.nih.gov/pubmed/36474023
http://dx.doi.org/10.1038/s41598-022-25679-0
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