Abstract
A model of a debonding and a crack occurring from a circular rigid inclusion in an infinite plate is analyzed as a mixed boundary value problem under uniform tension. A mapping function represented in the form of a sum of fractional expressions and complex stress functions are used. The stress distribution, stress intensity factors at the tip of a crack, and stress singular values at a debonded tip are presented. By using these stress singular values, the intensity of the debonded tip is also considered.
Résumé
On analyse un modèle de décollement et de fissuration au départ d'une inclusion rigide circulaire dans une tôle infinie, en le considérant comme un problème mixte de valeurs aux limites sous une tension uniforme. On utilise des fonctions complexes de la contrainte et une représentation sous forme d'une somme d'expressions fractionnelles. La distribution des contraintes, des facteurs d'intensité de contraintes à l'extrémité de la fissure, et les valeurs des contraintes singulières à l'extrémité de la zone décollée, sont présentées. En utilisant ces valeurs de contraintes singulières, on prend également en compte l'étendue de cette zone décollée.
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Hasebe, N., Okumura, M. & Nakamura, T. Stress analysis of a debonding and a crack around a circular rigid inclusion. Int J Fract 32, 169–183 (1986). https://doi.org/10.1007/BF00018351
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DOI: https://doi.org/10.1007/BF00018351