Roughness of fracture surfaces
UNSPECIFIED. (2000) Roughness of fracture surfaces. EUROPHYSICS LETTERS, 52 (3). pp. 304-310. ISSN 0295-5075Full text not available from this repository.
We study the roughness of fracture surfaces of three-dimensional samples through numerical simulations of a model for quasi-static cracks known as Born Model. We find for the roughness exponent a value zeta similar or equal to 0.5 measured for "small length scales" in microfracturing experiments. Our simulations confirm that at small length scales the fracture can be considered as quasi-static. The isotropy of the roughness exponent on the crack surface is also showed. Finally, considering the crack front, we compute the roughness exponents of longitudinal and transverse fluctuations of the crack line (zeta (parallel to) similar to zeta (perpendicular to) similar to 0.5). They result in agreement with experimental data, and support the possible application of the model of line depinning in the case of long-range interactions.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||EUROPHYSICS LETTERS|
|Publisher:||E D P SCIENCES|
|Number of Pages:||7|
|Page Range:||pp. 304-310|
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