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  5. Análise Fisicamente Não-Linear de Vigas Metálicas no Contexto da GBT

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Preprint
Portuguese
2011

Análise Fisicamente Não-Linear de Vigas Metálicas no Contexto da GBT

0 Datasets

0 Files

$0 Value

Portuguese
2011
HAL (Le Centre pour la Communication Scientifique Directe)

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Nuno Silvestre
Nuno Silvestre

University of Lisbon

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Miguel Abambres
Dinar Camotim
Nuno Silvestre

Abstract

Neste artigo apresenta-se uma formulacao da GBT para analises elasto-plasticas de 1a ordem e ilustra-se a sua aplicacao a uma viga simplesmente apoiada com seccao em I, constituida por um material elastico-perfeitamente plastico e submetida a cargas concentradas a meio vao. Os resultados da GBT sao validados por comparacao com os resultados obtidos atraves de um modelo de elementos de casca utilizando o programa ABAQUS. Constata-se uma excelente correlacao entre os resultados da GBT e do ABAQUS, em particular no que respeita a trajectorias de equilibrio e configuracoes deformadas. No que respeita a diagramas de tensoes, os resultados da GBT sao bastante satisfatorios no que respeita a tensoes axiais, de corte e de Von Mises, mas distintos dos resultados do ABAQUS no que diz respeito a tensoes normais transversais. No entanto, as distribuicoes 3D de tensoes normais transversais sao qualitativamente semelhantes em todo o dominio da barra.

How to cite this publication

Miguel Abambres, Dinar Camotim, Nuno Silvestre (2011). Análise Fisicamente Não-Linear de Vigas Metálicas no Contexto da GBT. HAL (Le Centre pour la Communication Scientifique Directe)

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Publication Details

Type

Preprint

Year

2011

Authors

3

Datasets

0

Total Files

0

Language

Portuguese

Journal

HAL (Le Centre pour la Communication Scientifique Directe)

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