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We analyse the $\Gamma$-convergence of general non-local convolution type functionals with varying densities depending on the space variable and on the symmetrized gradient. The limit is a local free-discontinuity functional, where the bulk…

偏微分方程分析 · 数学 2024-11-20 Roberta Marziani , Francesco Solombrino

Using the theory of $\Gamma$-convergence, we derive from three-dimensional elasticity new one-dimensional models for non-Euclidean elastic ribbons, i.e. ribbons exhibiting spontaneous curvature and twist. We apply the models to…

偏微分方程分析 · 数学 2016-03-08 Virginia Agostiniani , Antonio DeSimone , Konstantinos Koumatos

In this paper, we use the Green-Naghdi theory of thermomechanics of continua to derive a nonlinear theory of thermoelasticity with microtemperatures of type III. This theory permits propagation of both thermal and microtemperatures waves at…

偏微分方程分析 · 数学 2021-03-23 Moncef Aouadi , Michele Ciarletta , Francesca Passarella

We study the asymptotic behaviour, in the sense of $\Gamma$-convergence, of a thin incompressible magnetoelastic plate, as its thickness goes to zero. We focus on the linearized von K\'arm\'an regime. The model features a mixed…

偏微分方程分析 · 数学 2022-01-06 Marco Bresciani

We consider a nonlinear, frame indifferent Griffith model for nonsimple brittle materials where the elastic energy also depends on the second gradient of the deformations. In the framework of free discontinuity and gradient discontinuity…

偏微分方程分析 · 数学 2019-09-25 Manuel Friedrich

The article addresses the mathematical modeling of the folding of a thin elastic sheet along a prescribed curved arc. A rigorous model reduction from a general hyperelastic material description is carried out under appropriate scaling…

数值分析 · 数学 2022-02-09 Sören Bartels , Andrea Bonito , Peter Hornung

In this paper we derive a line tension model for dislocations in 3d starting from a geometrically nonlinear elastic energy with quadratic growth. In the asymptotic analysis, as the amplitude of the Burgers vectors (proportional to the…

偏微分方程分析 · 数学 2020-04-07 Adriana Garroni , Roberta Marziani , Riccardo Scala

The electronic properties of thin films present quantum-size effects, which are a consequence of the finite size of the system. Here we focus on the investigation of these effects on the electronic energy loss of charged particles moving…

材料科学 · 物理学 2009-10-31 A. Garcia-Lekue , J. M. Pitarke

We prove a relation between the scaling $h^\beta$ of the elastic energies of shrinking non-Euclidean bodies $S_h$ of thickness $h\to 0$, and the curvature along their mid-surface $S$. This extends and generalizes similar results for plates…

偏微分方程分析 · 数学 2019-01-23 Cy Maor , Asaf Shachar

We study the atomistic-to-continuum limit of a class of energy functionals for crystalline materials via Gamma-convergence. We consider energy densities that may depend on interactions between all points of the lattice and we give…

偏微分方程分析 · 数学 2019-10-02 Annika Bach , Andrea Braides , Marco Cicalese

We study the effect of boundary rugosity in nematic liquid crystalline systems. We consider a highly general formulation of the problem, able to simultaneously deal with several liquid crystal theories. We use techniques of Gamma…

偏微分方程分析 · 数学 2021-08-26 Razvan-Dumitru Ceuca , Jamie M. Taylor , Arghir Zarnescu

We consider a two phase elastic thin film with soft inclusions subject to bending dominated deformations. The soft (void) phase may comprise asymptotically small droplets within the elastic matrix. We perform a dimension reduction analysis…

偏微分方程分析 · 数学 2022-05-25 Mario Santilli , Bernd Schmidt

We consider a geodesic $\gamma$ of length $2L$ in an oriented Riemannian manifold $(\mathcal M, g)$ and a thin tube $\Omega^*_h$ around $\gamma$ of radius $h$. We study an 'elastic' energy per unit volume $E_h(u)$ of maps $u$ from…

偏微分方程分析 · 数学 2025-12-02 Milan Kroemer , Stefan Müller

This paper is the second part of a work devoted to the modelling of thin elastic plates with small, periodically distributed piezoelectric inclusions. We consider the equations of linear elasticity coupled with the electrostatic equation,…

偏微分方程分析 · 数学 2013-11-06 Eric Canon , Michel Lenczner

This work is concerned with an asymptotic analysis, in the sense of $\Gamma$-convergence, of a sequence of variational models of brittle damage in the context of linearized elasticity. The study is performed as the damaged zone concentrates…

偏微分方程分析 · 数学 2019-11-19 Jean-Francois Babadjian , Flaviana Iurlano , Filip Rindler

We compute the $\Gamma$-limit of energy functionals describing mechanical systems composed of a thin nematic liquid crystal elastomer sustaining a homogeneous and isotropic elastic membrane. We work in the regime of infinitesimal…

偏微分方程分析 · 数学 2017-12-08 Pierluigi Cesana , Andrés A. León Baldelli

We introduce a simplified model for the minimization of the elastic energy in thin shells. This model is not obtained by an asymptotic analysis. The thickness of the shell remains a parameter as in Reisner-Mindlin's model for plates and…

偏微分方程分析 · 数学 2010-11-23 Dominique Blanchard , Georges Griso

We consider the steady-state analysis of a pinned elastic plate lying on the free surface of a thin viscous fluid, forced by the motion of a bottom substrate moving at constant speed. A mathematical model incorporating elasticity,…

流体动力学 · 物理学 2025-05-20 Philippe H. Trinh , Stephen K. Wilson , Howard A. Stone

In this article, we provide a general derivation of the nonlinear frequency shift, $\delta \omega$, for a sinusoidal electron plasma wave (EPW) that varies slowly enough for the results derived in the companion paper, on the action…

等离子体物理 · 物理学 2017-09-18 Didier Benisti

We establish a $\Gamma$-convergence result for $h\to 0$ of a thin nonlinearly elastic 3D-plate of thickness $h>0$ which is assumed to be glued to a support region in the 2D-plane $x_3=0$ over the $h$-2D-neighborhood of a given closed set…

偏微分方程分析 · 数学 2024-04-02 Antoine Lemenant , Mohammad Reza Pakzad