Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio

Detalhes bibliográficos
Autor(a) principal: Fonseca, Fabio Machado Alves da
Data de Publicação: 2022
Tipo de documento: Trabalho de conclusão de curso
Idioma: eng
Título da fonte: Repositório Institucional da UFU
Texto Completo: https://repositorio.ufu.br/handle/123456789/34757
Resumo: CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
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spelling 2022-04-18T13:41:01Z2022-04-18T13:41:01Z2022-03-17FONSECA, Fabio Machado Alves da. Analysis of tomographies of cavities observed under decompression of elastomers exposed to hydrogen. 2020. 43 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeronáutica) – Universidade Federal de Uberlândia, Uberlândia, Uberlândia, 2022.https://repositorio.ufu.br/handle/123456789/34757CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorTrabalho de Conclusão de Curso (Graduação)2024-03-17At the department of Damage and Durability of Pprime Institute, the team has been interested in the formation of cavities in rubber materials exposed to hydrogen under high pressures followed by decompression. The phenomena was observed for the first time in 1990 and has not been widely investigated so far. In the last years, the usability of rubbers in industry has increased regarding its unique properties and benefits of efficiency and cost. In this context, connected to the world’s pressure of reducing emissions of greenhouse gases and clean sources of energy usage, we have the perfect environment. It is the opportunity to make this study of cavities one of the heads to encourage transportation moved by hydrogen, showing that we are close to have enough technology to improve the hydrogen volume energy efficiency within a reduced cost. In this sense, the Pprime institute has recently developed an experience of in-situ monitoring of decompression with tomographies which provides access for the first time to a time-resolved 3D visualization of the field damage. In this way, it was possible to obtain a quantification over time of parameters such as number of cavities, size distribution, their relative distances and their form factor. This experiment, so far carried out on X-ray source of the laboratory, was recently brought to a synchrotron environment in order to gain in space and time resolution. In this sense, the objective of this internship was to contribute to the analysis of tomographies images acquired during the recently conducted test campaign on the Anatomix beamline of the Synchrotron SOLEIL. During this study, it was possible to observe a lot of new phenomena never noticed before. In this situation, it was necessary to stipulate specific objectives taking into account the duration of the internship. They were: understanding better the formation of cavities with the new resolution in time and space resultant of the Synchrotron SOLEIL, elucidating the mechanisms at a very early stage; capturing new effects such as sphericity, volume of the sample, distance between cavities and the free surface, and distance between cavity-cavity. Furthermore, it was possible to work with more severe conditions of decompression to obtain more cavities into the experiment to improve the statistical analysis. Lastly, the influence of the crosslink density with the formation of cavities was analyzed. The work was carried out on the ImageJ software, on the basis of already existing processing programs that were adapted, particularly to deal with a large number of data. The first step was to specify the mechanisms already demonstrated in an EPDM (Ethylene Propylene Diene Monomer) and to raise some questions about the early stages of growth.engUniversidade Federal de UberlândiaEngenharia AeronáuticaBrasilCNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL::MATERIAIS E PROCESSOS PARA ENGENHARIA AERONAUTICA E AEROESPACIALRapid gas decompressionHydrogenElastomersFracture of elastomersAnálise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênioAnalysis of tomographies of cavities observed under decompression of elastomers exposed to hydrogenAnalyse d'images tomographiques de cavités observées sous décompression dans des élastomères exposés à l'hydrogèneinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesisVenson, Giuliano Gardolinskihttp://lattes.cnpq.br/7831693644209178Santos, Daniel Dall'Onder doshttp://lattes.cnpq.br/7847006276264872Morais, Tobias Souzahttp://lattes.cnpq.br/1662045974941011Não possuoFonseca, Fabio Machado Alves da43info:eu-repo/semantics/embargoedAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFUORIGINALAnalysisOfTomographies.pdfAnalysisOfTomographies.pdfTCCapplication/pdf3160572https://repositorio.ufu.br/bitstream/123456789/34757/1/AnalysisOfTomographies.pdf629bdade383c2d7c8bf34d05bf0772d9MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81792https://repositorio.ufu.br/bitstream/123456789/34757/2/license.txt48ded82ce41b8d2426af12aed6b3cbf3MD52TEXTAnalysisOfTomographies.pdf.txtAnalysisOfTomographies.pdf.txtExtracted texttext/plain52977https://repositorio.ufu.br/bitstream/123456789/34757/3/AnalysisOfTomographies.pdf.txt46a6f6341f03ecc45dc948c46c7429b2MD53THUMBNAILAnalysisOfTomographies.pdf.jpgAnalysisOfTomographies.pdf.jpgGenerated Thumbnailimage/jpeg1259https://repositorio.ufu.br/bitstream/123456789/34757/4/AnalysisOfTomographies.pdf.jpgd615bd7aa1f5f2f1afa2f79979751b71MD54123456789/347572022-09-20 10:55:01.368oai:repositorio.ufu.br:123456789/34757Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2022-09-20T13:55:01Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false
dc.title.pt_BR.fl_str_mv Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
dc.title.alternative.pt_BR.fl_str_mv Analysis of tomographies of cavities observed under decompression of elastomers exposed to hydrogen
Analyse d'images tomographiques de cavités observées sous décompression dans des élastomères exposés à l'hydrogène
title Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
spellingShingle Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
Fonseca, Fabio Machado Alves da
CNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL::MATERIAIS E PROCESSOS PARA ENGENHARIA AERONAUTICA E AEROESPACIAL
Rapid gas decompression
Hydrogen
Elastomers
Fracture of elastomers
title_short Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
title_full Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
title_fullStr Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
title_full_unstemmed Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
title_sort Análise de tomografias de cavidades observadas sob a decompressão de elastômeros expostos a hidrogênio
author Fonseca, Fabio Machado Alves da
author_facet Fonseca, Fabio Machado Alves da
author_role author
dc.contributor.advisor1.fl_str_mv Venson, Giuliano Gardolinski
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/7831693644209178
dc.contributor.referee1.fl_str_mv Santos, Daniel Dall'Onder dos
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/7847006276264872
dc.contributor.referee2.fl_str_mv Morais, Tobias Souza
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/1662045974941011
dc.contributor.authorLattes.fl_str_mv Não possuo
dc.contributor.author.fl_str_mv Fonseca, Fabio Machado Alves da
contributor_str_mv Venson, Giuliano Gardolinski
Santos, Daniel Dall'Onder dos
Morais, Tobias Souza
dc.subject.cnpq.fl_str_mv CNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL::MATERIAIS E PROCESSOS PARA ENGENHARIA AERONAUTICA E AEROESPACIAL
topic CNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL::MATERIAIS E PROCESSOS PARA ENGENHARIA AERONAUTICA E AEROESPACIAL
Rapid gas decompression
Hydrogen
Elastomers
Fracture of elastomers
dc.subject.por.fl_str_mv Rapid gas decompression
Hydrogen
Elastomers
Fracture of elastomers
description CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-04-18T13:41:01Z
dc.date.available.fl_str_mv 2022-04-18T13:41:01Z
dc.date.issued.fl_str_mv 2022-03-17
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/bachelorThesis
format bachelorThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv FONSECA, Fabio Machado Alves da. Analysis of tomographies of cavities observed under decompression of elastomers exposed to hydrogen. 2020. 43 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeronáutica) – Universidade Federal de Uberlândia, Uberlândia, Uberlândia, 2022.
dc.identifier.uri.fl_str_mv https://repositorio.ufu.br/handle/123456789/34757
identifier_str_mv FONSECA, Fabio Machado Alves da. Analysis of tomographies of cavities observed under decompression of elastomers exposed to hydrogen. 2020. 43 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeronáutica) – Universidade Federal de Uberlândia, Uberlândia, Uberlândia, 2022.
url https://repositorio.ufu.br/handle/123456789/34757
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
dc.publisher.none.fl_str_mv Universidade Federal de Uberlândia
Engenharia Aeronáutica
dc.publisher.country.fl_str_mv Brasil
publisher.none.fl_str_mv Universidade Federal de Uberlândia
Engenharia Aeronáutica
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFU
instname:Universidade Federal de Uberlândia (UFU)
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