Accelerated aging procedure of epoxy structural adhesive for marine offshore applications

Knowledge of the long-term performance of adhesive connections is undoubtedly of paramount importance to enable their deployment in civil, mechanical, and other engineering applications. Over time, adverse environmental conditions can strongly influence the performance of adhesive joints leading to...

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Main Authors: Marco Lamberti, Aurélien Maurel-Pantel, Frédéric Lebon
Format: Article
Language:English
Published: Elsevier 2024-06-01
Series:Journal of Advanced Joining Processes
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666330924000323
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author Marco Lamberti
Aurélien Maurel-Pantel
Frédéric Lebon
author_facet Marco Lamberti
Aurélien Maurel-Pantel
Frédéric Lebon
author_sort Marco Lamberti
collection DOAJ
description Knowledge of the long-term performance of adhesive connections is undoubtedly of paramount importance to enable their deployment in civil, mechanical, and other engineering applications. Over time, adverse environmental conditions can strongly influence the performance of adhesive joints leading to a progressive deterioration of their initial mechanical properties. The use of adhesive connections for secondary structures in offshore applications is a technology that allows for the rapid creation of structural members that, however, cannot ignore the influence of hydrothermal effects on mechanical performance due to environmental conditions. In this context, the investigation of the hygrothermal durability of adhesive connections was undertaken through an extensive experimental programme. More specifically, 130 cylindrical steel joints bonded with a commercially epoxy resin for structural applications were tested in Mode I using an Arcan-modified device. Prior to test, the specimens were placed in climatic ovens capable of combining the effects of temperature and humidity for approximately 320 days. In addition, the glass transition temperature, Tg, was assessed by employing the differential scanning calorimeter (DSC) technique to correctly define the experimental ageing conditions. The experimental results show how ageing conditions influence the mechanical properties of the epoxy resin investigated. Finally, some predictive formulations are proposed to calculate the loss of strength of adhesive joints over time.
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spelling doaj.art-cc273b1931bd474ea721d19dae4a54752024-04-12T04:46:03ZengElsevierJournal of Advanced Joining Processes2666-33092024-06-019100216Accelerated aging procedure of epoxy structural adhesive for marine offshore applicationsMarco Lamberti0Aurélien Maurel-Pantel1Frédéric Lebon2Aix-Marseille University, CNRS, Centrale Marseille, LMA, Marseille, France; ENEA, Brasimone Research Center, Italy; Corresponding author.Aix-Marseille University, CNRS, Centrale Marseille, LMA, Marseille, FranceAix-Marseille University, CNRS, Centrale Marseille, LMA, Marseille, FranceKnowledge of the long-term performance of adhesive connections is undoubtedly of paramount importance to enable their deployment in civil, mechanical, and other engineering applications. Over time, adverse environmental conditions can strongly influence the performance of adhesive joints leading to a progressive deterioration of their initial mechanical properties. The use of adhesive connections for secondary structures in offshore applications is a technology that allows for the rapid creation of structural members that, however, cannot ignore the influence of hydrothermal effects on mechanical performance due to environmental conditions. In this context, the investigation of the hygrothermal durability of adhesive connections was undertaken through an extensive experimental programme. More specifically, 130 cylindrical steel joints bonded with a commercially epoxy resin for structural applications were tested in Mode I using an Arcan-modified device. Prior to test, the specimens were placed in climatic ovens capable of combining the effects of temperature and humidity for approximately 320 days. In addition, the glass transition temperature, Tg, was assessed by employing the differential scanning calorimeter (DSC) technique to correctly define the experimental ageing conditions. The experimental results show how ageing conditions influence the mechanical properties of the epoxy resin investigated. Finally, some predictive formulations are proposed to calculate the loss of strength of adhesive joints over time.http://www.sciencedirect.com/science/article/pii/S2666330924000323Hygro-thermal environmentAdhesive connectionsAgeingMechanical properties
spellingShingle Marco Lamberti
Aurélien Maurel-Pantel
Frédéric Lebon
Accelerated aging procedure of epoxy structural adhesive for marine offshore applications
Journal of Advanced Joining Processes
Hygro-thermal environment
Adhesive connections
Ageing
Mechanical properties
title Accelerated aging procedure of epoxy structural adhesive for marine offshore applications
title_full Accelerated aging procedure of epoxy structural adhesive for marine offshore applications
title_fullStr Accelerated aging procedure of epoxy structural adhesive for marine offshore applications
title_full_unstemmed Accelerated aging procedure of epoxy structural adhesive for marine offshore applications
title_short Accelerated aging procedure of epoxy structural adhesive for marine offshore applications
title_sort accelerated aging procedure of epoxy structural adhesive for marine offshore applications
topic Hygro-thermal environment
Adhesive connections
Ageing
Mechanical properties
url http://www.sciencedirect.com/science/article/pii/S2666330924000323
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AT aurelienmaurelpantel acceleratedagingprocedureofepoxystructuraladhesiveformarineoffshoreapplications
AT fredericlebon acceleratedagingprocedureofepoxystructuraladhesiveformarineoffshoreapplications