| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Teixeira De Freitas, Sofia
Instituto Superior Técnico
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (33/33 displayed)
- 2024Experimental evaluation of interface adhesion of a flax fiber composite patch with epoxy and polyurethane adhesives for the reinforcement of steel structurescitations
- 2024On the Mode I Fracture Toughness of Metal-Composite Joints with untreated SLM 3D-Printed Ti6Al4V Substrates
- 2024Disrupting Fracture Toughness Of Adhesively Bonded Joints By Tailoring Composite Substrates
- 2024Acoustic emission approach for identifying fracture mechanisms in composite bonded Jointscitations
- 2023Uncovering the toughening mechanisms of bonded joints through tailored CFRP layupcitations
- 2023How does “listening” help fracture understanding?
- 2022Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing jointscitations
- 2022Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing jointscitations
- 2022Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap jointcitations
- 2022Promoting extrinsic bridging of adhesively-bonded CFRP joints through the adhesive layer architecture
- 2022Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overviewcitations
- 2022Enhancement of mode I fracture toughness of adhesively bonded secondary joints using different layup patterning of CFRP
- 2021Effect of salt spray ageing on the fracture of composite-to-metal bonded jointscitations
- 2021Testing mechanical performance of adhesively bonded composite joints in engineering applicationscitations
- 2021The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded jointscitations
- 2021On the influence of glass fiber mat on the mixed-mode fracture of composite-to-metal bonded jointscitations
- 2021On the influence of glass fiber mat on the mixed-mode fracture of composite-to-metal bonded jointscitations
- 2021Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap jointcitations
- 2021Damage assessment of a titanium skin adhesively bonded to carbon fiber–reinforced plastic omega stringers using acoustic emissioncitations
- 2021Evaluation of the strain-based partitioning method for mixed-mode I+II fracture of bi-material crackscitations
- 2020Enhanced Interface Adhesion by Novel Eco-Epoxy Adhesives Based on the Modified Tannic Acid on Al and CFRP Adherendscitations
- 2020Enhanced Interface Adhesion by Novel Eco-Epoxy Adhesives Based on the Modified Tannic Acid on Al and CFRP Adherendscitations
- 2020Significantly enhanced structural integrity of adhesively bonded PPS and PEEK composite joints by rapidly UV-irradiating the substratescitations
- 2020Damage assessment of NCF, 2D and 3D Woven Composites under Compression After Multiple-Impact using Acoustic Emissioncitations
- 2020Review on adhesives and surface treatments for structural applications : recent developments on sustainability and implementation for metal and composite substratescitations
- 2019Compression After Multiple Low Velocity Impacts of NCF, 2D and 3D Woven Compositescitations
- 2019From thin to extra-thick adhesive layer thicknesses:Fracture of bonded joints under mode I loading conditionscitations
- 2019Strain-based methodology for mixed-mode I plus II fracture: A new partitioning method for bi-material adhesively bonded jointscitations
- 2019Strain-based methodology for mixed-mode I+II fracture: A new partitioning method for bi-material adhesively bonded jointscitations
- 2019Damage characterization of adhesively-bonded Bi-material joints using acoustic emissioncitations
- 2018Interlaminar adhesion assessment of carbon-epoxy laminates under salt water ageing using peel testscitations
- 2018Interlaminar adhesion assessment of carbon-epoxy laminates under salt water ageing using peel testscitations
- 2018On the fracture behaviour of CFRP bonded joints under mode I loading: Effect of supporting carrier and interface contaminationcitations
Places of action
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article
Effect of salt spray ageing on the fracture of composite-to-metal bonded joints
Abstract
This work investigates the effect of long-term environmental exposure on the performance of composite-to-metal bonded joints. Specimens are manufactured using a carbon-fiber reinforced polymer (CFRP) co-bonded to a steel member with epoxy adhesive and aged in a salt spray chamber. The mixed-mode fracture behavior of the non-aged and aged specimens is assessed using the mixed-mode bending (MMB) test apparatus. The fracture energy is calculated using the finite elements method and an analytical approach, the strain-based method (SBM). The SBM showed to be a simple and accurate method to obtain the total fracture energy and the fracture mode ratio of the bi-material specimen. Ageing increased the fracture toughness at crack initiation by 27% for specimens loaded at 20% mode II and 7% for specimens loaded at 15% mode II. This can be related to the shear behavior and plasticization of the adhesive material. During crack propagation, the fracture toughness remained similar for specimens loaded at 20% mode II and decreased by 15% in specimens loaded at 15% mode II. Fractography analysis together with chemical characterization showed that the penetration of moisture at the edges of the fracture surface produced adhesive failure in these regions affected by moisture. Moreover, the failure mode at the unaffected regions of the fracture surface shifted from cohesive to a combination of thin-layer cohesive and adhesive failure after ageing. The results contributed to describe the effect of ageing on the fracture behavior of bonded materials.