, additionnée à la réponse dans le temps du matériau ? i.e. sa viscosité ? rend difficile l'interprétation des mécanismes pilotant la déformation. Les effets dissipatifs peuvent être de nature multiple : plasticité
, étude soit focalisée sur le comportement en traction monotone, une analyse du comportement de la fibre au cours d'un cycle charge/décharge ou bien lors d'une seconde mise en charge donne un éclairage pertinent sur les mécanismes dissipatifs mis en jeu. Divers essais, s'éloignant du cadre strict de l'étude, sont présentés ici afin de formuler un certain nombre d'interrogations et d
, 7. présente, tout d'abord, des cycles de charge/décharge menés aux "temps courts" pour différents niveaux de sollicitation, Une première consigne de charge maximale est imposée (TM : 1, pp.6-10
, littérature traitant des fibres nylon, est fréquemment attribué à une dégradation du réseau d'enchevêtrement [HEU92] ou bien est associé à l'annihilation de ponts hydrogène
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