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| Titel |
Healing of snow surface-to-surface contacts by isothermal sintering |
| VerfasserIn |
E. A. Podolskiy, M. Barbero, F. Barpi, G. Chambon, M. Borri-Brunetto, O. Pallara, B. Frigo, B. Chiaia, M. Naaim |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1994-0416
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| Digitales Dokument |
URL |
| Erschienen |
In: The Cryosphere ; 8, no. 5 ; Nr. 8, no. 5 (2014-09-09), S.1651-1659 |
| Datensatznummer |
250116310
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| Publikation (Nr.) |
 copernicus.org/tc-8-1651-2014.pdf |
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| Zusammenfassung |
| Natural sintering in ice is a fundamental process determining mechanical
properties of various ice forms. According to the literature, limited data
are available about the complex subjects of snow sintering and bond
formation. Here, through cold laboratory mechanical tests with a new shear
apparatus we demonstrate time-dependent effects of isothermal sintering on
interface strengthening at various normal pressures. Measurements showed that
interfacial strength evolved rapidly, conforming to a power law (mean
exponent ≈ 0.21); higher pressure corresponded to higher initial
strength and sintering rates. Our findings are consistent with observations
on homogeneous snow, provide unique records essential for slope stability
models and indicate the significant importance of normal load on data
interpretation. |
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