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Simulations of stress-strain heterogeneities in copper thin films: Texture and substrate effects

: Siska, F.; Forest, S.; Gumbsch, P.


Roters, F.:
Computational mechanics of materials. Proceedings of the 15th international workshop 2005 : Düsseldorf, Germany, 19 - 20 September, 2005
Amsterdam: Elsevier, 2007 (Computational materials science 39.2007, Nr.1)
International Workshop on Computational Mechanics of Materials (IWCMM) <15, 2005, Düsseldorf>
Conference Paper, Journal Article
Fraunhofer IWM ()
finite element; thin film; polycrystal; crystal plasticity

Finite element simulations of the elastic and elasticplastic deformation of copper thin films are performed in the presence or not of substrate. The investigated textures are {111} and {001}. In the anisotropic elastic case, {001} films are associated with more strain heterogeneities than {111} films. Strong plastic strain heterogeneities are found in {001} films. The presence of a substrate increases significantly the heterogeneity of stressstrain fields.