• norsk
    • English
  • norsk 
    • norsk
    • English
  • Logg inn
Vis innførsel 
  •   Hjem
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • Vis innførsel
  •   Hjem
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

An elastic-viscoplastic model for saturated frozen soils

Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Kadivar, Mehdi
Journal article, Peer reviewed
Thumbnail
Åpne
Manuscript5179.pdf (510.1Kb)
Permanent lenke
http://hdl.handle.net/11250/2436706
Utgivelsesdato
2017
Metadata
Vis full innførsel
Samlinger
  • Institutt for datateknologi og informatikk [3877]
  • Publikasjoner fra CRIStin - NTNU [21000]
Originalversjon
10.1080/19648189.2016.1271361
Sammendrag
From the material science point of view, saturated frozen soil is a natural particulate composite, composed of solid grains, ice and unfrozen water. The mechanical behaviour of such a material is strongly affected by the amount of ice. The amount of ice depends on the temperature and the applied mechanical stresses. The influence of ice content and temperature on the mechanical behaviour and the coupling effects on the reverse direction can be mentioned as the main difference between frozen and unfrozen soils. On the other hand, considering the highly rate-dependent behaviour of ice, rate-sensitive behaviour of frozen soils is expected. This rate dependency is also affected by the amount of ice existed in the composite. In the light of these differences, an elastic-viscoplastic constitutive model for describing the mechanical behaviour of saturated frozen soils is proposed. By dividing the total stress into fluid pressure and solid phase stress, in addition to consideration of the cryogenic suction, the model is formulated within the framework of two stress-state variables. The rate-dependent behaviour is considered using the so-called over-stress method. In unfrozen state, the model becomes a conventional elastic-viscoplastic critical state model. Model predictions are compared with the available test results and reasonable agreement is achieved.
Utgiver
Taylor and Francis
Tidsskrift
European Journal of Environmental and Civil Engineering

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit
 

 

Bla i

Hele arkivetDelarkiv og samlingerUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifterDenne samlingenUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifter

Min side

Logg inn

Statistikk

Besøksstatistikk

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit