Experimental investigation on creep behaviour of an epoxy adhesive

Epoxy adhesives have been extensively used in structural strengthening. This leads to a great concern in assessing their long-term performance since epoxy resins present viscoelastic behaviour. This work aims to better understand the long-term behaviour of a specific epoxy adhesive due to the creep...

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Detalhes bibliográficos
Autor principal: Silva, Patrícia Moreira (author)
Outros Autores: Sena-Cruz, José (author), Azenha, Miguel (author), Escusa, Gonçalo Gomes (author)
Formato: conferencePaper
Idioma:eng
Publicado em: 2015
Assuntos:
Texto completo:http://hdl.handle.net/1822/37322
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/37322
Descrição
Resumo:Epoxy adhesives have been extensively used in structural strengthening. This leads to a great concern in assessing their long-term performance since epoxy resins present viscoelastic behaviour. This work aims to better understand the long-term behaviour of a specific epoxy adhesive due to the creep effects. Therefore, an experimental program comprising tensile creep tests was carried out, divided in two series: (i) series S1 - epoxy specimens subjected to different stress levels for a predefined initial age; and (ii) series S2 - epoxy specimens subjected to equal stress levels but loaded at different ages. The paper presents the main results obtained so far, highlights relevant and corresponding conclusions.