An orthotropic constitutive model for secondary creep of ice

• Autorzy: Staroszczyk R.
• Języki publikacji: EN

Abstrakty

EN

As polycrystaline ice undergoes creep deformation over long time-periods, it develops a fabric (oriented structure) and associated, strain-induced anisotropy. In the paper, a frame-indifferent orthotropic constitutive model for secondary creep of ice is formulated, in which the strain-rate is expressed in terms of the deviatoric stress, strain, and three structure tensors based on the principal deformation axes. As an illustration, the model is used to determine the evolution of the creep response of ice to continued uniaxial compression and simple shearing.

Słowa kluczowe

EN

ice; creep; induced anisotropy; orthotropy; constitutive law

PL

pełzanie; równanie konstytutywne; anizotropia indukowana

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2001
• Tom: Vol. 53, nr 1
• Strony: 65--85
• Opis fizyczny: Bibliogr. 22 poz., wykr.

Twórcy

autor

Staroszczyk R.

• Polish Academy of Sciences Institute of Hydroengineering, Waryńskiego 17, 71-310 Szczecin, Poland,