A viscoelastic damage model for polycrystalline ice, inspired by Weibull-distributed fiber bundle models. Part I: Constitutive models

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• 作者：Arne Keller (1)
  Kolumban Hutter (1)
  
• 关键词：Polycrystalline ice ; Viscoelastic damage ; Delayed ; elastic response ; Rank ; 4 ; damage variable ; Weibull ; distributed fiber bundle model
• 刊名：Continuum Mechanics and Thermodynamics
• 出版年：2014
• 出版时间：November 2014
• 年：2014
• 卷：26
• 期：6
• 页码：879-894
• 全文大小：437 KB
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• 作者单位：Arne Keller (1)
  Kolumban Hutter (1)
  
  1. Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Z眉rich, Wolfgang-Pauli-Str. 27, 8093, Zurich, Switzerland
  
• ISSN：1432-0959

文摘

We consider a constitutive model for polycrystalline ice, which contains delayed-elastic and viscous deformations, and a damage variable. The damage variable is coupled to the delayed-elastic deformation by a fiber bundle ansatz. We construct an isotropic theory, which can be calibrated with experimental data. Furthermore, we generalize the theory to a damage model in terms of rank-four tensors. This general model allows the evolution of anisotropic damage.