Analytical Prediction of Geometrically Necessary Dislocation Density during Plane Strain Microbending

Li Jie Wang; Brad L. Kinsey; Sunal Parasiz

doi:10.4028/www.scientific.net/KEM.693.734

Paper Titles

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Analysis on the Friction and Wear Properties of Friction Stir Jointing for 7022 Aluminum Alloy Joining Region
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Analysis on the Melt Welding Process of the Finite Element for 7022 Aluminum Alloy
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Analytical Prediction of Geometrically Necessary Dislocation Density during Plane Strain Microbending
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 693Analytical Prediction of Geometrically Necessary...

Analytical Prediction of Geometrically Necessary Dislocation Density during Plane Strain Microbending

Abstract:

As components with proportional feature and tooling sizes are miniaturized, strain gradients through the cross-section increase. This causes strain gradient hardening as the density of geometrically necessary dislocations increases. This will lead to higher required forces in the process than expected. In this paper, an analytical model to predict the dislocation density increases, and thus strain gradient hardening, during microbending is presented. These results match previous research in terms of the feature size where modest and significant strain gradient hardening was observed.

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Periodical:

Key Engineering Materials (Volume 693)

Pages:

734-739

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.693.734

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Online since:

May 2016

Authors:

Li Jie Wang*, Brad L. Kinsey, Sunal Parasiz

Keywords:

Geometrically Necessary Dislocations, Micro-Bending, Size Effect

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* - Corresponding Author

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