A damage-mechanics model for fracture nucleation and propagation

作者：Yakovlev G; Gran J D^*; Turcotte D L; Rundle J B; Holliday J R; Klein W

来源：Theoretical and Applied Fracture Mechanics, 2010, 53(3): 180-184.

DOI：10.1016/j.tafmec.2010.06.002

• Damage
• Fracture
• Nucleation
• Fiber bundles

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.

• 出版日期2010-6