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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2006.tde-05102006-104047
Document
Author
Full name
Eduardo Toledo de Lima Junior
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2006
Supervisor
Committee
Paiva, Joao Batista de (President)
Coda, Humberto Breves
Palermo Junior, Leandro
Title in Portuguese
Formulação do método dos elementos de contorno para análise de cascas abatidas
Keywords in Portuguese
cascas abatidas
integrais de domínio
mecânica computacional
mecânica das estruturas
método dos elementos de contorno
Abstract in Portuguese
O presente trabalho trata da análise numérica de cascas abatidas com o uso do método dos elementos de contorno (MEC). A formulação é desenvolvida a partir do acoplamento entre as equações integrais para flexão de placas delgadas e para estado plano de tensão. No esquema implementado, os termos sobre o contorno são avaliados a partir de processos analíticos e numéricos de integração. No caso das integrais de domínio, aplica-se um procedimento semi-analítico de cálculo sobre células discretas. A validação do modelo computacional desenvolvido é feita com base em resultados da literatura, obtidos com uso do método dos elementos finitos e dos elementos de contorno, além de soluções analíticas.
Title in English
Boundary element formulation for shallow shell analysis
Keywords in English
boundary element method
computational mechanics
domain integrals
shallow shells
structural mechanics
Abstract in English
The present work deals with the numerical analysis of shallow shells using boundary element method (BEM). The formulation is developed by coupling integral equations of plate bending and plane stress elasticity. In the implemented scheme, the boundary terms are evaluated with analytical and numerical processes of integration. In the case of domain integrals, a semi-analytical calculation procedure is applied on discrete cells. The validation of developed computational model is made with results from other works, obtained by use of BEM or finite element method, besides analytical solutions.
 
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Publishing Date
2006-10-10
 
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