Crashworthiness performance of hybrid energy absorbers using PET-G honeycomb structure

Silva, Rita de Cássia; Castro, Gabriel Martins; Oliveira, Alessandro Borges de Sousa; Brasil, Augusto César de Mendonça; Luz, Sandra Maria da

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Campo DC	Valor	Idioma
dc.contributor.author	Silva, Rita de Cássia	-
dc.contributor.author	Castro, Gabriel Martins	-
dc.contributor.author	Oliveira, Alessandro Borges de Sousa	-
dc.contributor.author	Brasil, Augusto César de Mendonça	-
dc.contributor.author	Luz, Sandra Maria da	-
dc.date.accessioned	2023-10-18T13:29:06Z	-
dc.date.available	2023-10-18T13:29:06Z	-
dc.date.issued	2022-09-27	-
dc.identifier.citation	SILVA, 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.uri	http://repositorio2.unb.br/jspui/handle/10482/46699	-
dc.language.iso	eng	pt_BR
dc.publisher	Taylor & Francis	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Crashworthiness performance of hybrid energy absorbers using PET-G honeycomb structure	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Estrutura do favo de mel	pt_BR
dc.subject.keyword	Absorvedores de energia híbrida	pt_BR
dc.subject.keyword	Absorvedores de energia preenchidos	pt_BR
dc.subject.keyword	Proteção contra impacto	pt_BR
dc.identifier.doi	https://doi.org/10.1080/15397734.2022.2124170	pt_BR
dc.relation.publisherversion	https://www.tandfonline.com/doi/full/10.1080/15397734.2022.2124170	pt_BR
dc.description.abstract1	The 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.orcid	https://orcid.org/0000-0002-5022-8105	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-1298-4612	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-2223-0021	pt_BR
dc.contributor.affiliation	University of Brasilia, Department of Automotive Engineering, Group of Modelling and Simulation of Vehicle Systems	pt_BR
dc.contributor.affiliation	University of Brasilia, Department of Automotive Engineering, Group of Modelling and Simulation of Vehicle Systems	pt_BR
dc.contributor.affiliation	University of Brasilia, Department of Automotive Engineering, Group of Modelling and Simulation of Vehicle Systems	pt_BR
dc.contributor.affiliation	University of Brasilia, Department of Energy Engineering, Group of Modelling and Simulation of Vehicle Systems	pt_BR
dc.contributor.affiliation	University of Brasilia, Department of Automotive Engineering	pt_BR
dc.description.unidade	Faculdade UnB Gama (FGA)	pt_BR
dc.description.unidade	Curso de Engenharia Automotiva (FGA-Engenharia Automotiva)	pt_BR
dc.description.unidade	Curso de Engenharia de Energia (FGA-Engenharia de Energia)	pt_BR
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