PEEL TEST METHOD AND DEVICE FOR LAYERS OF MATERIAL IN TAPE FORM

The invention relates to a peel test method for layers of material in the form of tape (32), joined together, in which method 1) a roll (6) of a tape (32) of a material comprising superposed layers of said tape (32) joined together is supplied, said tape (32) having a free portion (34) extending from said roll (6); 2) said free portion (34) of said tape (32) is forcibly driven in translation in order successively to free said layers, while said roll (6) is rotationally driven; and 3) a value of the longitudinal tension in said free portion (34) as said layers come free is simultaneously recorded; and said free portion (34) is wound around a cylindrical winding element (5). L'invention concerne une méthode d'essai de pelage de couches de matériau en bande (32) solidaires les unes des autres, dans laquelle 1 ) on fournit un enroulement (6) d'une bande (32) d'un matériau comportant des couches superposées de ladite bande (32) solidaires les unes des autres, ladite bande (32) présentant une portion libre (34) qui s'étend à partir dudit enroulement (6); 2) on entraîne en translation à force ladite portion libre (34) de ladite bande (32) de manière à libérer successivement lesdites couches, tandis que ledit enroulement (6) est entraîné en rotation; et, 3) on enregistre simultanément une valeur de tension longitudinale de ladite portion libre (34) lorsque lesdites couches se libèrent; on enroule ladite portion libre (34) autour d'un élément d'enroulement cylindrique (5).