Moisture sorption behavior of an epoxy-based structural adhesive and its impact on the mode I interlaminar fracture toughness of bonded joints in the oil and gas industry

Moraes, C.E.; Santos, L.F.P.; Leal, T.P.F.G.; Costa, M.L.; Botelho, E.C.

doi:10.1016/j.ijadhadh.2024.103799

International Journal of Adhesion and Adhesives

2024

DOI: 10.1016/j.ijadhadh.2024.103799

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Moisture sorption behavior of an epoxy-based structural adhesive and its impact on the mode I interlaminar fracture toughness of bonded joints in the oil and gas industry

C.E. Moraes,

L.F.P. Santos,

T.P.F.G. Leal

et al.

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2024

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Effect of Extreme Environments on Adhesive Joint Performance

Kadlec,

Cabrnoch,

Hron

2024

J. Compos. Sci.

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The presented research on adhesives was conducted with the aim of supporting the design of composite repairs for composite aircraft structures that can withstand specific environmental conditions. Double-sided strap joint specimens of epoxy-based CFRP adherents and straps were bonded by two types of adhesives. Room-temperature curing epoxy adhesives EC-9323 and EA-9395 were used for bonding. The specimens’ shear strength and failure modes were evaluated under four different environmental conditions from −72 °C up to 70 °C unconditioned and at 70 °C after humidity conditioning. The results show that EC-9323 performed excellently at room temperature, but very poorly at elevated temperatures after hot–wet conditioning. Adhesive EA-9395 performed consistently well across all tested conditions. The failure mode analysis explained the performance trends and the effect of the environment on the fractured surface. This study will support proper repair design and verification of numerical simulations. The novelty of this article lies in its combined analysis of multiple environmental factors, providing a more realistic assessment of joint performance.

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Effect of Extreme Environments on Adhesive Joint Performance

Kadlec,

Cabrnoch,

Hron

2024

J. Compos. Sci.

View full text Add to dashboard Cite

show abstract

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Moisture sorption behavior of an epoxy-based structural adhesive and its impact on the mode I interlaminar fracture toughness of bonded joints in the oil and gas industry

Cited by 1 publication

References 36 publications

Effect of Extreme Environments on Adhesive Joint Performance

Effect of Extreme Environments on Adhesive Joint Performance

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