Two-dimensional scaling properties of experimental fracture surfaces

The self-affine properties of postmortem fracture surfaces in silica glass and aluminum alloy were investigated through the 2D height-height correlation function. They are observed to exhibit anisotropy. The roughness, dynamic, and growth exponents are determined and shown to be the same for the two...

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Bibliographic Details
Published in:Physical review letters 2006-01, Vol.96 (3), p.035506-035506, Article 035506
Main Authors: Ponson, L, Bonamy, D, Bouchaud, E
Format: Article
Language:English
Subjects:
Condensed Matter
Physics
Statistical Mechanics
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Summary:The self-affine properties of postmortem fracture surfaces in silica glass and aluminum alloy were investigated through the 2D height-height correlation function. They are observed to exhibit anisotropy. The roughness, dynamic, and growth exponents are determined and shown to be the same for the two materials, irrespective of the crack velocity. These exponents are conjectured to be universal.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.96.035506