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The theory of non-steady state fracture propagation rate

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Abstract

The classical concepts of the Tobolsky-Eyring theory of thermally activated bond breaking and mending mechanism were extended to describe fracture propagation at the molecular level. The analysis shows that the physical process which controls the propagation rate of cracks is described by a differential equation identical to the mathematical representation of the counterpart problems in heat transfer and diffusion.

Résumé

Les concepts classiques de la théorie moléculaire de la rupture de Tobolsky-Eyring, sur le mécanisme de rupture et de réparation des liaisons dues à la thermoactivation, ont été étendus à la description, à l'échelle moléculaire, de la propagation de la rupture.

L'analyse montre que le processus physique qui contrôle la vitesse de propagation des fissures peut être décrit par une équation différentielle identique à la représentation mathématique des problèmes de conduction thermique et de diffusion.

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References

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Krausz, A.S. The theory of non-steady state fracture propagation rate. Int J Fract 12, 239–242 (1976). https://doi.org/10.1007/BF00036981

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  • DOI: https://doi.org/10.1007/BF00036981

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