Quantitative prediction of effective toughness at random heterogeneous interfaces.
Phys Rev Lett
; 110(16): 165507, 2013 Apr 19.
Article
em En
| MEDLINE
| ID: mdl-23679621
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 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.
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MEDLINE
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Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
França