Abstract
The elastostatic axisymmetric problem for an infinite layer is considered. The layer is subjected to tensile forces laterally applied through rigid cylinders which are perfectly bonded to the layer on their flat ends. There is either a penny-shaped crack or an external notch in the mid-plane of the layer. The Hankel transform is used to solve the governing equations which are reduced to a system of three singular integral equations for cylinder-layer interface stresses and crack surface displacement derivative. Interface stresses, stress intensity factors around the edge of the cylinders and at the crack tips, and strain energy release rate for the crack are presented in graphical form.
Résumé
On traite comme un problème axysymétrique élasto-statique le cas d'une couche infinie, soumise à des forces de traction appliquées latéralement grâce à des cyclindres rigides qui lui sont parfaitement fixés par leurs extrémités plates.
Dans le milieu du plan de la couche pré-existe une fissure en ongle ou une entaille extérieure. On utilise la transformée de Hankel pour résoudre les équations directrices, réduites à un système de trois intégrales singulières décrivant les contraintes d'interface entre les cylindres et la couche, et la dérivée des déplacements des surfaces de la fissure.
On présente sous une forme graphique les contraintes d'interface, les facteurs d'intensité de contraintes sur les bords du cylindre et aux extrémités de la fissure, et la vitesse de libération de l'énergie de déformation au niveau de la fissure.
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Gecit, M.R. Analysis of tensile test for a cracked adhesive layer pulled by rigid cylinders. Int J Fract 32, 241–256 (1986). https://doi.org/10.1007/BF00018543
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DOI: https://doi.org/10.1007/BF00018543