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Universidade de Brasília
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dc.contributor.authorSilva, Rita de Cássia-
dc.contributor.authorCastro, Gabriel Martins-
dc.contributor.authorOliveira, Alessandro Borges de Sousa-
dc.contributor.authorBrasil, Augusto César de Mendonça-
dc.contributor.authorLuz, Sandra Maria da-
dc.date.accessioned2023-10-18T13:29:06Z-
dc.date.available2023-10-18T13:29:06Z-
dc.date.issued2022-09-27-
dc.identifier.citationSILVA, Rita de Cássia et al. Crashworthiness performance of hybrid energy absorbers using PET-G honeycomb structure. Mechanics Based Design of Structures and Machines, [S.l.], 2022. DOI: https://doi.org/10.1080/15397734.2022.2124170.pt_BR
dc.identifier.urihttp://repositorio2.unb.br/jspui/handle/10482/46699-
dc.language.isoengpt_BR
dc.publisherTaylor & Francispt_BR
dc.rightsAcesso Restritopt_BR
dc.titleCrashworthiness performance of hybrid energy absorbers using PET-G honeycomb structurept_BR
dc.typeArtigopt_BR
dc.subject.keywordEstrutura do favo de melpt_BR
dc.subject.keywordAbsorvedores de energia híbridapt_BR
dc.subject.keywordAbsorvedores de energia preenchidospt_BR
dc.subject.keywordProteção contra impactopt_BR
dc.identifier.doihttps://doi.org/10.1080/15397734.2022.2124170pt_BR
dc.relation.publisherversionhttps://www.tandfonline.com/doi/full/10.1080/15397734.2022.2124170pt_BR
dc.description.abstract1The authors report an experimental investigation on square thin-walled energy absorbers with different topologies and materials. The material was steel SAE 1010 and aluminum AL 6160. Some samples non-filled and filled with polymeric material received patterned windows placed in opposite faces with specific dimensions: 20x20, 15x30, and 20x30 mm2. Quasi-static axial loading crushes hollow specimens and hybrid specimens filled with PET-G honeycomb. The core filling was printed using the FDM technique. The crashworthy ability of specimens was evaluated based on the specific energy absorption (SEA), load ratio (LR) and structural efficiency (η), which showed that windowed-filled specimens with 20x30 mm2 perform better. The maximum increase of SEA was 212%, LR decreased from 4.02 to 1.78 and η increased from 0.45 to 0.89 for steel energy absorbers and in the same manner, the values for aluminum specimens were 123%, 2.97 to 1.28 and 0.46 to 0.71. The effects of the patterned windows and their combination with the honeycomb core for both metallic materials show that such a topology improved the performance in two factors. The windows reduced the peak force, and the PET-G honeycomb furnished a smoothing to the region at the end of the fold formation, contributing to the crashworthy ability. Future work envisages experimental testing of the samples in dynamic tests.pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5022-8105pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1298-4612pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2223-0021pt_BR
dc.contributor.affiliationUniversity of Brasilia, Department of Automotive Engineering, Group of Modelling and Simulation of Vehicle Systemspt_BR
dc.contributor.affiliationUniversity of Brasilia, Department of Automotive Engineering, Group of Modelling and Simulation of Vehicle Systemspt_BR
dc.contributor.affiliationUniversity of Brasilia, Department of Automotive Engineering, Group of Modelling and Simulation of Vehicle Systemspt_BR
dc.contributor.affiliationUniversity of Brasilia, Department of Energy Engineering, Group of Modelling and Simulation of Vehicle Systemspt_BR
dc.contributor.affiliationUniversity of Brasilia, Department of Automotive Engineeringpt_BR
dc.description.unidadeFaculdade UnB Gama (FGA)pt_BR
dc.description.unidadeCurso de Engenharia Automotiva (FGA-Engenharia Automotiva)pt_BR
dc.description.unidadeCurso de Engenharia de Energia (FGA-Engenharia de Energia)pt_BR
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