Abstract
A summary is given of existing solutions for stress intensity factors for through-the-thickness cracks emanating from circular holes. New solutions are given for some cases of cracks at circular holes in finite plates. The results were obtained by the finite element method with isoparametric eight-noded quarter point elements and the J-integral. Computational problems arising at short cracks are discussed and an approximate method evaluated. The accuracy of the given data is in general within a couple of percent.
Résumé
One donne une synthèse des solutions existantes pour la détermination des facteurs d'intensité des contraintes dans le cas de fissures traversant l'épaisseur et émanant de trous circulaires. De nouvelles solutions sont fournies pour certains cas de fissures amorcées à des trous circulaires dans des plaques finies. Les résultats ont été obtenus par la méthode des éléments finis en utilisant des éléments quart-point isoparamétriques à 8 noeuds, ainsi que par l'intégrale J. Les problèmes de calcul qui se présentent dans le cas de fissures courtes sont discutées et une méthode approximative est examinée. La précision des données fournies est en général de l'ordre de quelques pourcents.
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Karlsson, A., Bäcklund, J. Summary of SIF design graphs for cracks emanating from circular holes. Int J Fract 14, 585–596 (1978). https://doi.org/10.1007/BF00115997
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DOI: https://doi.org/10.1007/BF00115997