Quantitative Prediction of Effective Toughness at Random Heterogeneous Interfaces

TY - JOUR

T1 - Quantitative Prediction of Effective Toughness at Random Heterogeneous Interfaces

AU - Patinet, Sylvain

AU - Roux, Stephane

AU - Vandembroucq, Damien

PY - 2013/4/19

Y1 - 2013/4/19

N2 - 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 the 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.

AB - 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 the 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.

U2 - 10.1103/PhysRevLett.110.165507

DO - 10.1103/PhysRevLett.110.165507

M3 - Journal article

SN - 0031-9007

VL - 110

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 165507

ER -