A DECOHESIVE REPRESENTATION OF ICE FAILURE
A discrete constitutive equation is described for predicting the initiation and evolution of leads in Arctic ice. A key feature of the new model is the ability to predict axial splitting under uniaxial compression with a suitable choice of material parameters. Other unique aspects of the model are t...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.530.246 http://math.unm.edu/~sulsky/papers/SchreyerPOAC05.pdf |
| Summary: | A discrete constitutive equation is described for predicting the initiation and evolution of leads in Arctic ice. A key feature of the new model is the ability to predict axial splitting under uniaxial compression with a suitable choice of material parameters. Other unique aspects of the model are the capability to handle multiple cracks at a point, to predict modes of failure according to the state of stress, and to build in pre-existing planes of weakness that may be due, for example, to frozen leads. A method is suggested for estimating values of material parameters for in situ ice by utilizing satellite data describing the motion of Arctic ice. |
|---|