XP T54-990

Polyethylene (PE) pipes and fittings - Determination of the resistance to crack initiation and slow crack growth on notched cylindrical bars under constant load (NCBT)

Le présent document spécifie une méthode d'essai permettant de déterminer la résistance à l'initiation de fissures et la résistance à la propagation lente de fissures des matériaux, tubes et raccords en polyéthylène (PE) , exprimées respectivement en termes de temps d'initiation et de la durée écoulée jusqu'à la rupture, lors d'un essai de traction statique constante sur des barres cylindriques entaillées. Cette méthode s'applique aux matériaux en PE soumis à l'essai sous forme d'échantillons usinés à partir de plaques moulées par compression.

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