LATTICE MODELS OF FAILURE - SENSITIVITY TO THE LOCAL DYNAMICS

被引:23
作者
GABRIELOV, A
NEWMAN, WI
KNOPOFF, L
机构
[1] RUSSIAN ACAD SCI,INT INST EARTHQUAKE PREDICT THEORY & MATH GEOPHYS,MOSCOW,RUSSIA
[2] CORNELL UNIV,DEPT GEOL,ITHACA,NY 14853
[3] UNIV CALIF LOS ANGELES,INST GEOPHYS & PLANETARY PHYS,LOS ANGELES,CA 90024
[4] UNIV CALIF LOS ANGELES,DEPT EARTH & SPACE SCI,LOS ANGELES,CA 90024
[5] UNIV CALIF LOS ANGELES,DEPT ASTRON,LOS ANGELES,CA 90024
[6] UNIV CALIF LOS ANGELES,DEPT MATH,LOS ANGELES,CA 90024
[7] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024
来源
PHYSICAL REVIEW E | 1994年 / 50卷 / 01期
关键词
D O I
10.1103/PhysRevE.50.188
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Quasistatic lattice models to explore scaling and other properties of failure events, including earthquakes, are characterized by the presence of two or more time scales. We show that there is a remarkable degree of variability in the qualitative behavior of these models: In one model with periodic boundary conditions, which simulates a moving dislocation or avalanche model of fracture, the trajectories are always periodic in both one and two dimensions. In another quasistatic model which simulates a growing coherent crack, the trajectories are either periodic or chaotic, depending on the initial conditions. Characteristic behaviors derived from analytic results are illustrated by numerical simulations.
引用
收藏
页码:188 / 197
页数:10
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