FE simulation of the curing behavior of the epoxy adhesive Hysol EA-9321

Autor: Jean Yves Cognard, Romain Créac'Hcadec, Florian Lavelle, O. Devaux, K. Mathis
Přispěvatelé: MMA, Laboratoire brestois de mécanique et des systèmes (LBMS), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne), Centre National d'Études Spatiales [Toulouse] (CNES)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: International Journal of Adhesion and Adhesives
International Journal of Adhesion and Adhesives, Elsevier, 2015, 60, pp.31-46. ⟨10.1016/j.ijadhadh.2015.03.005⟩
ISSN: 0143-7496
DOI: 10.1016/j.ijadhadh.2015.03.005⟩
Popis: International audience; Cold-curing adhesives, characterized by an unsteady curing degree, present various advantages for assembling large scale structures set up under outdoor conditions. Thus various applications can be found in aerospace and automotive industries where structures are affected by thermal and mechanical loads. Hence, the curing state of the adhesive must be known to evaluate the lifetime of such bonded structures. The evolution of the polymerization of the adhesive Hysol EA-9321 during the curing process was examined in this paper. To that end, the curing degree of the adhesive was experimentally and analytically investigated for different curing cycles with a view to a potential application in the aerospace domain, where structures are assembled at low temperatures. Existing dynamic and isothermal curing models were applied to simulate the curing behavior of the adhesive. Then, an FEM model was developed to simulate the process of adhesive curing by taking into account a thermo-kinetic coupling.
Databáze: OpenAIRE