| Issue |
Europhys. Lett.
Volume 47, Number 4, August II 1999
|
|
|---|---|---|
| Page(s) | 456 - 461 | |
| Section | Condensed matter: structure, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i1999-00409-9 | |
| Published online | 01 September 2002 | |
Failure time and microcrack nucleation
1
Laboratoire de Physique, CNRS UMR5672, Ecole Normale Superieure de Lyon 46 allée d'Italie, 69364 Lyon, France
2
Departamento de Física, Facultad de Ciencias, Universidad de Navarra E-31080 Pamplona, Spain
Received:
29
March
1999
Accepted:
28
June
1999
The failure time of samples of heterogeneous materials (wood, fiberglass) is studied as a function of the applied stress. It is shown that in these materials the failure time is predicted with a good accuracy by a model of microcrack nucleation proposed by Pomeau. It is also shown that the crack growth process presents critical features when the failure time is approached.
PACS: 62.20.Mk – Fatigue, brittleness, fracture, and cracks / 46.50.+a – Fracture mechanics, fatigue and cracks / 46.65.+g – Random phenomena and media
© EDP Sciences, 1999
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