Homogenization of line tension energies

Martino Fortuna; Adriana Garroni

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arXiv · 2304.12132

Homogenization of line tension energies

Martino Fortuna·Adriana Garroni

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Abstract

We prove an homogenization result, in terms of $\Gamma$-convergence, for energies concentrated on rectifiable lines in $\R^3$ without boundary. The main application of our result is in the context of dislocation lines in dimension $3$. The result presented here shows that the line tension energy of unions of single line defects converge to the energy associated to macroscopic densities of dislocations carrying plastic deformation. As a byproduct of our construction for the upper bound for the $\Gamma$-Limit, we obtain an alternative proof of the density of rectifiable $1$-currents without boundary in the space of divergence free fields.

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Martino Fortuna, Adriana Garroni. 2023-04-24. Homogenization of line tension energies. https://arxiv.org/abs/2304.12132

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