Th. Baxevanis 2008 EPL 83 46004 doi:10.1209/0295-5075/83/46004
Th. Baxevanis
Show affiliationsA coarse-grained mean-field model is proposed where the damage enhanced creep of heterogeneous materials is described by the theory of absolute reaction rates. The dynamics of the proposed model, below a critical load, is characterized by an intensive precursor activity in the form of avalanches of microscopic breaking events that leads to a final catastrophic cascade occurring at a finite strain. Above the critical load, failure is instantaneous. The critical load is the static (elastic) fracture strength; thus the model is consistent with its time-independent analogue. Finally, the proposed model reproduces the experimental observations on the time evolution of the creep rate.
05.70.Ln Nonequilibrium and irreversible thermodynamics
81.40.Np Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure
Issue 4 (August 2008)
Received 4 March 2008, accepted for publication 4 July 2008
Published 6 August 2008
Th. Baxevanis 2008 EPL 83 46004
2009 J. Neural Eng. 6 069901
R A Pitts et al 2005 Plasma Phys. Control. Fusion 47 B303
P. Jenniskens and D. F. Blake 1996 ApJ 473 1104
I K Bartol et al 2008 Bioinspir. Biomim. 3 014001
M. Hiller et al 2008 EPL 82 40006
M. Assafin et al. 2003 The Astronomical Journal 125 2728
N. A. Sinitsyn and I. Nemenman 2007 EPL 77 58001
Daniel Wolf Savin et al 2004 ApJ 607 L147
Edward G. Schmidt et al. 2005 The Astronomical Journal 129 2007