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

作者：Caggiano Antonio; Martinelli Enzo^*

来源：Composite Structures, 2013, 99: 397-403.

DOI：10.1016/j.compstruct.2012.12.011

• Bond
• Brittle substrate
• Fracture Mechanics
• FRP
• Zero-thickness interface

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 %26quot;a priori%26quot; 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.

• 出版日期2013-5