Author(s): P. M. Melanson; I. J. Jordaan; I. L. Meglis
Linked Author(s):
Keywords: No Keywords
Abstract: The latest constitutive model for ice developed at Memorial University of Newfoundland is reviewed along with laboratory testing performed to calibrate the model. This iteration of the model was developed based on comparisons with other relations and collected data. Emphasis is placed on the relations used to quantify damage in the models. The latest model takes into account the effect of hydrostatic pressure and stress on the damage measure and the creep response of ice. A program of laboratory tests in which ice. was tested triaxially is presented. The ice, subjected to constant differential stress at various confining pressures, was used to investigate how differential stress and confinement affect the creep response of ice. It is likely that there are different defomution mechanisms at work at high and low confining pressures.
Year: 1998