Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
797979 | Mechanics of Materials | 2006 | 15 Pages |
Abstract
Micro-mechanically based constitutive models representing inelastic behavior of directionally solidified (DS) materials are proposed. A finite element (FE) computation used to calibrate the model is first presented. It is compared with a model using a static homogenization scheme (uniform stress throughout the material). These approaches lead to significantly different results. A new model is then proposed with a suitable scale transition rule from the macroscopic level to the grain level. Satisfactory results are obtained for this second model, at the macroscopic level as well as for local responses.
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Authors
K. Sai, G. Cailletaud, S. Forest,