Abstract
A discrete atomic model of a crack tip in iron under mixed mode loads is examined. The results indicate that the behavior of the crack at the atomic scale as a function of the ratio of mode I to mode II component of load is quite complex. In general, crack tip plasticity appears to increase as the mode II component of load increases.
Résumé
On examine un modèle atomique discret de l'extrémité d'une fissure dans du fer soumis à des charges de mode mixte. Les résultats indiquent que le comportement de la fissure à l'échelle atomique en fonction du rapport des composantes de charge du mode I sur celles du mode II est totalement complexe. En général, la plasticité à l'extrémité d'une fissure parait s'accroitre lorsque la composante de mode II de la contrainte s'accroit.
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Mullins, M. Atomic simulation of cracks under mixed mode loading. Int J Fract 24, 189–196 (1984). https://doi.org/10.1007/BF00032682
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DOI: https://doi.org/10.1007/BF00032682