Strength and deformation of frozen saturated sand at -30 degrees C
Frozen saturated quartz sand containing 20% moisture by weight, when deformed at -30 degrees C at various strain rates, showed various modes of behaviour such as visco- plastic, almost ideal plastic, and brittle with little plasticity with increasing order of strain rate. The values of peak strength...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
1982
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| Subjects: | |
| Online Access: | https://nrc-publications.canada.ca/eng/view/ft/?id=f72f833c-646e-4820-87f1-1c955f872979 https://nrc-publications.canada.ca/eng/view/object/?id=f72f833c-646e-4820-87f1-1c955f872979 https://nrc-publications.canada.ca/fra/voir/objet/?id=f72f833c-646e-4820-87f1-1c955f872979 |
| Summary: | Frozen saturated quartz sand containing 20% moisture by weight, when deformed at -30 degrees C at various strain rates, showed various modes of behaviour such as visco- plastic, almost ideal plastic, and brittle with little plasticity with increasing order of strain rate. The values of peak strength observed for strain rates between 5 X 10[- 7] and 6 X 10[-3]s[-1] were in the range 15-42 MPa,, stress being related to strain rate by a power-law equation. Du sable de quartz, saturé à une teneur en eau de 20%, gelé sous une température de -30 degrés C, et déformé sous différentes vitesses de déformation, a montré des comportements viscoplastiques, presque parfaitement plastique, et fragile avec peu de plasticité, sous des vitesses de déformation croissantes. Les valeurs de résistance de pic observées pour des vitesses de déformation entre 5 X 10[-7] et 6 X 10[- 3]s[-1] étaient de l'ordre de 15-42 MPa, la contrainte étant reliée à la vitesse de déformation par une équation de puissance. Peer reviewed: Yes NRC publication: Yes |
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