We present numerical simulations of two-dimensional models of electric breakdown and fracture in disordered systems subject to an increasing external stress. We provide a geometrical characterization of the damage by studying the scaling behavior of connected bonds clusters, The average cluster size and the lattice conductivity show features characteristic of a first order phase transition. The obtained results are discussed within the spinodal nucleation scenario recently proposed for fractures.
Analysis of damage clusters in fracture processes / S. Zapperi, P. Ray, H. Stanley, A. Vespignani. - In: PHYSICA. A. - ISSN 0378-4371. - 270:1-2(1999 Aug 01), pp. 57-62. ((Intervento presentato al convegno International Conference on Statistical Physics (Statphys - Calcutta III) tenutosi a Salt Lake nel 1999.
Analysis of damage clusters in fracture processes
S. Zapperi;
1999
Abstract
We present numerical simulations of two-dimensional models of electric breakdown and fracture in disordered systems subject to an increasing external stress. We provide a geometrical characterization of the damage by studying the scaling behavior of connected bonds clusters, The average cluster size and the lattice conductivity show features characteristic of a first order phase transition. The obtained results are discussed within the spinodal nucleation scenario recently proposed for fractures.
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