Prediction of debonding strength of tensile steel/CFRP joints using fracture mechanics and stress based criteria

In this paper, the debonding strength of axially loaded double shear lap specimens between steel plates and carbon fibre reinforced plastic plates is investigated from the analytical, numerical and experimental point of view. Two steel plates were joined together by two carbon fibre reinforced plast...

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Bibliographic Details
Published in:Engineering fracture mechanics 2009, Vol.76 (2), p.299-313
Main Authors: Bocciarelli, Massimiliano, Colombi, Pierluigi, Fava, Giulia, Poggi, Carlo
Format: Article
Language:English
Subjects:
Analytical modelling
Applied sciences
CFRP plate
Composites
DSL specimen
Exact sciences and technology
Finite element analysis
Forms of application and semi-finished materials
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Mechanical testing
Physics
Polymer industry, paints, wood
Reinforcement of steel elements
Solid mechanics
Structural and continuum mechanics
Technology of polymers
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Summary:In this paper, the debonding strength of axially loaded double shear lap specimens between steel plates and carbon fibre reinforced plastic plates is investigated from the analytical, numerical and experimental point of view. Two steel plates were joined together by two carbon fibre reinforced plastic (CFRP) plates and epoxy adhesive in order to realize double shear lap specimens of different length. Failure of the steel–adhesive interface was identified as the dominant failure mode and fracture mechanics and stress based approach are presented in order to estimate the relevant failure load. A good agreement between the analytical–numerical results and experimental data is achieved.
ISSN:0013-7944
1873-7315
DOI:10.1016/j.engfracmech.2008.10.005