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Volumn 30, Issue 3, 2002, Pages 369-375

Ageing of the avalanche angle in immersed granular matter

Author keywords

45.70.Cc Static sandpiles; granular compaction; 45.70.Ht Avalanches; 81.40.Cd Solid solution hardening, precipitation hardening, and dispersion hardening; aging; 81.40.Lm Deformation, plasticity, and creep

Indexed keywords


EID: 19044398139     PISSN: 14346028     EISSN: None     Source Type: Journal    
DOI: 10.1140/epjb/e2002-00391-6     Document Type: Article
Times cited : (15)

References (25)
  • 17
    • 0042108991 scopus 로고    scopus 로고
    • note
    • No systematic dependance of the avalanche angle on the f beads diameter is observed. We measured respectively θ = 28.2, 29.6, and 28.7±1 degrees for D = 57, 112, and 225 μm. The uncertainty of the measurements (1 degree) is due to the preparation of the samples, and the difference measured between the samples can be due to several factor (polydispersity, surface roughness, etc.). Moreover, whatever the avalanche angle of reference is, we are interested in how it changes with time and not in its absolute value
  • 18
    • 0042108993 scopus 로고    scopus 로고
    • note
    • i is well-defined for a given sample
  • 23
    • 0042108988 scopus 로고    scopus 로고
    • note
    • Within the gel, the probability to form a new (Si-O)-Si bond from two Si-OH groups depends on the distance between the Si atoms. If these atoms are initially both bonded to the gel, supposed to be an elastic medium, we can assume that the activation energy includes an addi-tional term depending on the initial positions of the Si atoms. Thus, activation energies can be widely distributed as the initial positions of the Si atoms are random. In this case, we expect the number of bonds to increase logarithmically with time (see reference [11] for analogy with capillary condensation)
  • 24
    • 0042108992 scopus 로고    scopus 로고
    • note
    • A microphotograph of a solid bridge between two grains can be found in Ref. [14]. Olivi-Tran et al observed the formation of solid bridges within the liquid bridges formed after capillary condensation. In this case, the size of the solid bridge is limited by the size of the liquid bridge. When the material is immersed in water, the size of the solid bridge is limited by the thickness of the corroded layer


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.