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Enthalpy relaxation phenomena of epoxy adhesive in operational configuration: Thermal, mechanical and dielectric analyses

Caussé, Nicolas and Dantras, Eric and Tonon, Claire and Chevalier, Mathieu and Combes, Hélène and Guigue, Pascale and Lacabanne, Colette Enthalpy relaxation phenomena of epoxy adhesive in operational configuration: Thermal, mechanical and dielectric analyses. (2014) Journal of Non-Crystalline Solids, 387. 57-61. ISSN 0022-3093

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Official URL: http://dx.doi.org/10.1016/j.jnoncrysol.2013.12.028

Abstract

Thermal cycling in space environment can cause physical aging of polymers used in structural adhesive bonded joint. Later, they can initiate failure. A methodology to follow physical aging effects on their thermal, mechanical and dielectric properties is applied to a commercial epoxy adhesive. The analytic description, using Tool, Narayanaswamy and Moynihan model gives a good description of the enthalpy relaxation. It is completed by a phenomenological analysis of the evolution of the adhesive thermal transitions, mechanical properties and molecular mobility. Testedsamples with bondedassembly are representative ofin service configurations. The influence of physical aging on the adhesive and the associated bonded assemblies is analyzed.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at www.sciencedirect.com/science/article/pii/S0022309313006571
HAL Id:hal-00950219
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > EADS - Astrium (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:21 Feb 2014 09:21

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