Matériaux & Techniques
Volume 75, 1987SPÉCIAL COLLAGE - CONTRÔLES ET ESSAIS
|Page(s)||21 - 28|
|Published online||19 April 2017|
Collage de deux substrats parallélepipédiques droits
Analyse théorique et expérimentale dans le domaine élastique
Theoretical and experimental analysis of the glue-bonded truss ot two straight parallelepipedic elastic adherends
Maître de conférences à l’Université de Reims (IUT-GC) Chef du groupe composites et collage, ENSTA-LME Palaiseau.
2 Professeur des Universités à l’université de Reims - Conseiller scientifique, ENSTA/LME/GCC.
The aim of this paper is to study, by means of experimental measurements and of analytical computations, the mechanical behaviour of a specimen, made of two metallic straight parallelepipedic solids joined by an epoxy-double composed adhesive and undergoing a traction-force.
The adherends and the joint are supposed homogeneous, isotropic linear elastic with different mechanical characteristics (Young’s modulus, Poisson’s ratio). An experimental method with electrical strain-gauges shows a form of stress-concentration, specially in the neighbourhood of the axes of the specimen and at the vicinity of each interface adherend/adhesive. By using matched asymptotic expansions method, the Airy’s fonction of the classical problem is computed as the sum of several stationnary potentials : in this way, we find a good approximation of the stress-concentration, observed by the experimental method.
© SIRPE 1987
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