A three-dimensional constitutive damage model for polycrystalline ice

Abstract A continuum damage mechanics approach is used for the development of constitutive equations for polycrystalline ice. The effects of microcracks on ice deformation are described in association with conventional viscoelastic descriptions. Two microcrack systems are incorporated in the model: grain boundary cracking and transgranular cracking. Model results are presented for uniaxial and multiaxial stress states and comparisons are made with available test results.

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