Issue |
Europhys. Lett.
Volume 52, Number 3, November I 2000
|
|
---|---|---|
Page(s) | 304 - 310 | |
Section | Condensed matter: structure, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i2000-00439-9 | |
Published online | 01 September 2002 |
Roughness of fracture surfaces
1
INFM - Unità di Roma1 and Dipartimento di Fisica, Università
“La Sapienza" P.le A. Moro 2, 00185, Roma, Italy
2
Department of Physics, University of Warwick - Coventry, CV4 7AL, UK
Received:
12
May
2000
Accepted:
5
September
2000
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 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 (). 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.
PACS: 62.20.Mk – Fatigue, brittleness, fracture, and cracks / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 81.40.Np – Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure
© EDP Sciences, 2000
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.