Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions

Detalhes bibliográficos
Autor(a) principal: Ferreira, Inês Oliveira de Vasconcelos
Data de Publicação: 2015
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/16557
Resumo: Stiffened panels form the basic structural building blocks of airplanes, vessels and other structures with high requirements of strength-to-weight ratio. As a consequence it is crucial to understand the behaviour of these type of panels. Since buckling is the primary mode of failure of stiffened panels, it will be the focus in the present work. In the present work it was carried out several analysis, using the simulation software Abaqus, in order to study the buckling and postbuckling behaviour. Two different panels were tested in this thesis, the first one an aluminium stiffened panel, which its main goal was to understand the methodologies involved in the analysis of the buckling behaviour, and the second one a composite stiffened which its main goal was to find the proper tools to simulate its behaviour. Therefore, two different methods were used, the Riks method was used to analyse the aluminium panel and the Stabilize method to analyse the composite panel. The behaviour of stiffened panels are influenced by several parameters such as, the number and type of elements, the skin-stringer connection, the boundary conditions, the magnitude of imperfections, etc. So in the present work, those parameters were taken into account and its influence will be shown.
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spelling Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditionsEngenharia mecânicaLigas de alumínioEncurvaduraMétodo do elemento finitoStiffened panels form the basic structural building blocks of airplanes, vessels and other structures with high requirements of strength-to-weight ratio. As a consequence it is crucial to understand the behaviour of these type of panels. Since buckling is the primary mode of failure of stiffened panels, it will be the focus in the present work. In the present work it was carried out several analysis, using the simulation software Abaqus, in order to study the buckling and postbuckling behaviour. Two different panels were tested in this thesis, the first one an aluminium stiffened panel, which its main goal was to understand the methodologies involved in the analysis of the buckling behaviour, and the second one a composite stiffened which its main goal was to find the proper tools to simulate its behaviour. Therefore, two different methods were used, the Riks method was used to analyse the aluminium panel and the Stabilize method to analyse the composite panel. The behaviour of stiffened panels are influenced by several parameters such as, the number and type of elements, the skin-stringer connection, the boundary conditions, the magnitude of imperfections, etc. So in the present work, those parameters were taken into account and its influence will be shown.Os painéis reforçados formam as estruturas básicas de construção de aviões, navios e outras estruturas que exijam uma elevada relação entre resistência e peso. Deste modo, é crucial perceber o comportamento deste tipo de painéis. Tendo em conta que a encurvadura é o modo principal de falha deste tipo de painéis, será o foco de estudo desta dissertação. No trabalho presente, foram realizadas várias análises de forma a estudar o comportamento de encurvadura e pós-encurvadura de painéis reforçados, utilizando para isso o software de simulação Abaqus. Foram testados dois painéis diferentes, sendo que o primeiro foi um painél de alumínio, com o objectivo de perceber as metodologias envolvidas na simulação de placas reforçadas, e o segundo, um painel compósito, com o objecto de encontrar as ferramentas adequadas para simular o seu comportamento. Para isso, dois métodos distintos foram utilizados, sendo que foi utilizado o método de Riks para analisar a placa de alumínio e para analisar a placa compósita foi ultizado o método de estabilização. O comportamento dos painéis reforçados é influênciado por vários parâmetros tais como, modelo numérico, ligação entre placa e reforço, condições de fronteira, magnitude de imperfeições, etc. Assim, todos esses parâmetros foram tidos em conta e a sua influência irá ser mostrada no trabalho presente.Universidade de Aveiro2016-12-19T15:11:47Z2015-01-01T00:00:00Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10773/16557TID:201577445engFerreira, Inês Oliveira de Vasconcelosinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:30:55Zoai:ria.ua.pt:10773/16557Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:51:40.688230Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
title Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
spellingShingle Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
Ferreira, Inês Oliveira de Vasconcelos
Engenharia mecânica
Ligas de alumínio
Encurvadura
Método do elemento finito
title_short Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
title_full Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
title_fullStr Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
title_full_unstemmed Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
title_sort Analysis of the structural behaviour of stiffened panels subjected to compressive loading conditions
author Ferreira, Inês Oliveira de Vasconcelos
author_facet Ferreira, Inês Oliveira de Vasconcelos
author_role author
dc.contributor.author.fl_str_mv Ferreira, Inês Oliveira de Vasconcelos
dc.subject.por.fl_str_mv Engenharia mecânica
Ligas de alumínio
Encurvadura
Método do elemento finito
topic Engenharia mecânica
Ligas de alumínio
Encurvadura
Método do elemento finito
description Stiffened panels form the basic structural building blocks of airplanes, vessels and other structures with high requirements of strength-to-weight ratio. As a consequence it is crucial to understand the behaviour of these type of panels. Since buckling is the primary mode of failure of stiffened panels, it will be the focus in the present work. In the present work it was carried out several analysis, using the simulation software Abaqus, in order to study the buckling and postbuckling behaviour. Two different panels were tested in this thesis, the first one an aluminium stiffened panel, which its main goal was to understand the methodologies involved in the analysis of the buckling behaviour, and the second one a composite stiffened which its main goal was to find the proper tools to simulate its behaviour. Therefore, two different methods were used, the Riks method was used to analyse the aluminium panel and the Stabilize method to analyse the composite panel. The behaviour of stiffened panels are influenced by several parameters such as, the number and type of elements, the skin-stringer connection, the boundary conditions, the magnitude of imperfections, etc. So in the present work, those parameters were taken into account and its influence will be shown.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01T00:00:00Z
2015
2016-12-19T15:11:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/16557
TID:201577445
url http://hdl.handle.net/10773/16557
identifier_str_mv TID:201577445
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de Aveiro
publisher.none.fl_str_mv Universidade de Aveiro
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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