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Comparação entre modelos constitutivos de interface: abordagem total versus abordagem com plasticidade

Authors: Coelho M; Caggiano A; Sena-Cruz J; Neves L;

Comparação entre modelos constitutivos de interface: abordagem total versus abordagem com plasticidade

Abstract

Nos últimos anos, a técnica de inserção de polímeros reforçados com fibras (FRP) no recobrimento de betão tem sido cada vez mais utilizada para reforçar estruturas de betão (técnica NSM). Este artigo apresenta os resultados obtidos em simulações numéricas de ensaios de arranque direto efetuados em cubos de betão reforçados com sistemas de FRP NSM. Duas estratégias diferentes são usadas para simular a interface entre o FRP e o betão envolvente. Uma estratégia baseia-se em expressões analíticas conhecidas a priori, enquanto a outra se baseia na teoria clássica de plasticidade com escoamento. Os resultados revelaram que ambas as estratégias são capazes de simular o comportamento global obtido nos ensaios de arranque.

Countries
Italy, Portugal
Keywords

Plasticidade, FEM, Modelação, NSM, Método dos elementos finitos, Modelos constitutivos de interface

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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