A damage-mechanics model for fracture nucleation and propagation
| Autor: | Yakovlev, G., Gran, J. D., Turcotte, D. L., Rundle, J. B., Klein, W. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | G. Yakovlev, J.D. Gran, D.L. Turcotte, J.B. Rundle, J.R. Holliday, W. Klein, A damage-mechanics model for fracture nucleation and propagation, Theoretical and Applied Fracture Mechanics, 2010 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.tafmec.2010.06.002. |
| Popis: | In this paper a composite model for earthquake rupture initiation and propagation is proposed. The model includes aspects of damage mechanics, fiber-bundle models, and slider-block models. An array of elements is introduced in analogy to the fibers of a fiber bundle. Time to failure for each element is specified from a Poisson distribution. The hazard rate is assumed to have a power-law dependence on stress. When an element fails it is removed, the stress on a failed element is redistributed uniformly to a specified number of neighboring elements in a given range of interaction. Damage is defined to be the fraction of elements that have failed. Time to failure and modes of rupture propagation are determined as a function of the hazard-rate exponent and the range of interaction. Comment: In Press, Corrected Proof, Available online 13 June 2010, ISSN 0167-8442, (http://www.sciencedirect.com/science/article/B6V55-509B27K-3/2/9a243ee45418da97f1752fce0baa76a9) Keywords: Damage; Fracture; Nucleation; Fiber bundles |
| Databáze: | arXiv |
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