Crackling Dynamics in Material Failure as the Signature<? format?> of a Self-Organized Dynamic Phase Transition
Physical review letters, 2008•APS
We derive here a linear elastic stochastic description for slow crack growth in
heterogeneous materials. This approach succeeds in reproducing quantitatively the
intermittent crackling dynamics observed recently during the slow propagation of a crack
along a weak heterogeneous plane of a transparent Plexiglas block [KJ Måløy et al., Phys.
Rev. Lett. 96, 045501 (2006) PRLTAO 0031-9007 10.1103/PhysRevLett. 96.045501]. In this
description, the quasistatic failure of heterogeneous media appears as a self-organized …
heterogeneous materials. This approach succeeds in reproducing quantitatively the
intermittent crackling dynamics observed recently during the slow propagation of a crack
along a weak heterogeneous plane of a transparent Plexiglas block [KJ Måløy et al., Phys.
Rev. Lett. 96, 045501 (2006) PRLTAO 0031-9007 10.1103/PhysRevLett. 96.045501]. In this
description, the quasistatic failure of heterogeneous media appears as a self-organized …
We derive here a linear elastic stochastic description for slow crack growth in heterogeneous materials. This approach succeeds in reproducing quantitatively the intermittent crackling dynamics observed recently during the slow propagation of a crack along a weak heterogeneous plane of a transparent Plexiglas block [K. J. Måløy et al., Phys. Rev. Lett. 96, 045501 (2006)PRLTAO0031-900710.1103/PhysRevLett.96.045501]. In this description, the quasistatic failure of heterogeneous media appears as a self-organized critical phase transition. As such, it exhibits universal and to some extent predictable scaling laws, analogous to that of other systems such as, for example, magnetization noise in ferromagnets.
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