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arXiv · 1212.3861

Quantitative prediction of effective toughness at random heterogeneous interfaces

Sylvain Patinet·Damien Vandembroucq·Stéphane Roux
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Abstract

The propagation of an adhesive crack through an anisotropic heterogeneous interface is considered. Tuning the local toughness distribution function and spatial correlation is numerically shown to induce a transition between weak to strong pinning conditions. While the macroscopic effective toughness is given by the mean local toughness in case of weak pinning, a systematic toughness enhancement is observed for strong pinning (the critical point of the depinning transition). A self-consistent approximation is shown to account very accurately for this evolution, without any free parameter.

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Sylvain Patinet, Damien Vandembroucq, Stéphane Roux. 2014-02-15. Quantitative prediction of effective toughness at random heterogeneous interfaces. https://doi.org/10.1103/physrevlett.110.165507

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