Effective quasistatic evolution models for perfectly plastic plates with periodic microstructure: The limiting regimes.

Autor: Bužančić, Marin, Davoli, Elisa, Velčić, Igor
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Zdroj: Advances in Calculus of Variations; Oct2024, Vol. 17 Issue 4, p1399-1444, 46p
Abstrakt: We identify effective models for thin, linearly elastic and perfectly plastic plates exhibiting a microstructure resulting from the periodic alternation of two elastoplastic phases. We study here both the case in which the thickness of the plate converges to zero on a much faster scale than the periodicity parameter and the opposite scenario in which homogenization occurs on a much finer scale than dimension reduction. After performing a static analysis of the problem, we show convergence of the corresponding quasistatic evolutions. The methodology relies on two-scale convergence and periodic unfolding, combined with suitable measure-disintegration results and evolutionary Γ-convergence. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index