Constitutive Laws for Sea Ice Dynamics Multiscale Micromechanics of Ice Fields
Abstract
LONG TERM GOALS. To formulate constitutive laws and solution methods for ice fields viewed as heterogeneous multiscale materials from the standpoint of micromechanics of random media. To develop a stochastic-computational model for mechanics of pack ice treated as a spatially random granular material of Mohr-Coulomb type. APPROACH. A spatially random granular Mohr-Coulomb material is obtained from the classical, homogeneous continuum model by taking the internal friction angle rho and the resistance in tension H as a vector random field. These two constitutive coefficients specify a meso-continuum approximation on a meso-scale corresponding to the actual choice of spacing of a finite difference net of characteristics (Fig. 1) employed in the solution of a given boundary value problem.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1997
- Accession Number
- ADA636708
Entities
People
- Martin Ostoja-starzewski