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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2006.tde-08122006-152205
Document
Author
Full name
Alex Neves Junior
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2006
Supervisor
Committee
Bucalem, Miguel Luiz (President)
Pavanello, Renato
Silva, Emilio Carlos Nelli
Title in Portuguese
Sobre a modelagem de estruturas delgadas usando elementos finitos tridimensionais.
Keywords in Portuguese
Elementos finitos sólidos
Estruturas delgadas
Travamento
Abstract in Portuguese
O propósito principal do presente trabalho é estabelecer diretrizes para o uso de elementos finitos sólidos na modelagem de estruturas delgadas submetidas à flexão. Por meio de um conjunto de problemas estudou-se o travamento de elementos finitos da elasticidade bi e tridimensionais, quando usados para modelar estruturas delgadas submetidas à flexão. Foram usados elementos planos de 4, 8 e 9 nós e elementos tridimensionais de 4, 10, 11, 8, 20 e 27 nós, considerando elementos não distorcidos e distorcidos. A análise dos resultados nesses modelos permitiram entender melhor o comportamento e o uso de elementos sólidos em estruturas delgadas.
Title in English
About the modelling of thin structures using three-dimensional finite elements.
Keywords in English
Locking
Solid finite elements
Thin structures
Abstract in English
The main objective of the present work is to establish guidelines for the use of solid finite elements in the modeling of thin structures submitted to bending. By means of a set of problems the locking of elements three-dimensional and two-dimensional elasticity was studied, when used to model problems thin structures subjected to bending. We use 2-D displacements-based elements of 4, 8 and 9 nodes and 3-D displacement based of 4, 10, 11, 8, 20 and 27 nodes, considering undistorted and distorted elements. The analysis of the results of these models lead to the understanding of the behavior and the use of solid elements in thin structures.
 
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Publishing Date
2006-12-19
 
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