| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5436229 | Acta Materialia | 2017 | 12 Pages |
Abstract
We present a theory of thermal grooving, i.e. surface motion due to surface diffusion, based solely on geometrical and energetic arguments and a variational approach involving a thermodynamic extremal principle. The theory is derived for a fully three-dimensional setting. All interface and contact conditions at junction lines and points of the material aggregate are derived rigorously and without ambiguity. A finite element implementation of the model is employed. Numerical examples are presented and compared with experimental results from the literature.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Klaus Hackl, Franz Dieter Fischer, Jiri Svoboda,