Conditions de transmission pour les jonctions de plaques minces

This note is concerned with junctions of thin plates. The junction is made by a slender rod made of material with low rigidity with respect to that of the plates, allowing a variation of the angle between them. A macroscopic study is not sufficient to obtain all transmission conditions. A local tridimensional study is necessary. We prove then that not only the variation of the angle between the two plates, but also the sliding of one plate with respect to the other must be taken into account to the same order. Thus the behavior of the junction is completely determined.