Crack propagation through phase separated glasses: effect of the characteristic size of disorder

Abstract

We perform fracture experiments on nanoscale phase separated glasses and measure crack surface roughness by atomic force microscopy. The ability of tuning the phase domain size by thermal treatment allows us to test thoroughly the predictions of crack font depinning models about the scaling properties of crack surface roughness. It appears that in the range of validity of these depinning models developed for the fracture of brittle materials, our experimental results show a quantitative agreement with theoretical predictions: beyond the characteristic size of disorder, the roughness of crack surfaces obeys the logarithmic scaling early predicted by Ramanathan, Ertas and Fisher (PRL97)

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Cited by in corpus (18)

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• Quantitative prediction of effective toughness at random heterogeneous interfaces
• Effects of finite probe size on self-affine roughness measurements
• Modes of failures in disordered solids
• Topics in coarsening phenomena
• Finite size effects on crack front pinning at heterogeneous planar interfaces: Experimental, finite elements and perturbation approaches
• Experimental study of the effect of disorder on subcritical crack growth dynamics
• Cracks in random brittle solids: From fiber bundles to continuum mechanics
• Effect of the porosity on the fracture surface roughness of sintered materials: From anisotropic to isotropic self-affine scaling
• Roughness of oxide glass subcritical fracture surfaces
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• Crack front instabilities under mixed mode loading in three dimensions
• Wrapping and unwrapping multifractal fields
• Depinning and flow of a vortex line in an uniaxial random medium
• Theory and Experiments for Disordered Elastic Manifolds, Depinning, Avalanches, and Sandpiles
• From nucleation to percolation: the effect of system size and system disorder
• From nucleation to percolation: the effect of system size when disorder and stress localization compete