Experimental investigation and modeling attempt on the effects of ultraviolet aging on the fatigue behavior of an LDPE semi-crystalline polymer

Article dans une revue avec comité de lecture
Auteur
LAMNII, H.
374570 Université de Lille
NAIT-ABELAZIZ, Moussa
374570 Université de Lille
AYOUB, Georges
351151 Texas A&M University at Qatar
COLIN, Xavier
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
MASCHKE, U.
374570 Université de Lille

URI
http://hdl.handle.net/10985/19296
DOI
10.1016/j.ijfatigue.2020.105952
Date
2021
Journal
International Journal of Fatigue

Résumé

The objective of this study was to investigate the effect of UV irradiation on the fatigue life of a bulk semi-crystalline polymer. Low-density polyethylene samples exposed to different UV irradiation doses were fatigue tested. Fatigue indicator based on dissipated energy per cycle was found to present the best correlation with the experimental fatigue results. A master curve unifying the experimental fatigue results for as-received and UV-aged materials was obtained when subtracting the dissipated energy threshold from the total dissipated energy. Finally, the evolution of the damage with cyclic loading was analyzed and preliminary modeling was attempted.

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