Artigo Revisado por pares

A fracture-based interface model for simulating the bond behaviour of FRP strips glued to a brittle substrate

2012; Elsevier BV; Volume: 99; Linguagem: Inglês

10.1016/j.compstruct.2012.12.011

ISSN

1879-1085

Autores

António Caggiano, Enzo Martinelli,

Tópico(s)

Structural Response to Dynamic Loads

Resumo

The present paper deals with the bond behaviour of Fibre Reinforced Polymer (FRP) laminates glued to brittle substrates. Based on a similar proposal already available in the scientific literature for discrete-crack analyses on plain concrete, this work formulates a numerical model completely conceived within the general framework of Fracture Mechanics and plasticity-based concepts. This is the key novel aspect of the proposed work, whereas, as a matter of fact, the most common proposals and theoretical models available in the scientific literature and adopted for describing the bond behaviour of FRP-to-brittle adhesive joints are generally based on assuming "a priori" the analytical expression of the interface bond–slip law. Numerical applications demonstrate the soundness of the proposed formulation and show a very good agreement with experimental results of FRP-to-concrete bond–slip tests.

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