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We investigate a variational theory for magnetoelastic solids under the incompressibility constraint. The state of the system is described by deformation and magnetization. While the former is classically related to the reference…

偏微分方程分析 · 数学 2015-01-08 Martin Kružík , Ulisse Stefanelli , Jan Zeman

We investigate the problem of dimension reduction for plates in nonlinear magnetoelasticity. The model features a mixed Eulerian-Lagrangian formulation, as magnetizations are defined on the deformed set in the actual space. We consider…

偏微分方程分析 · 数学 2025-07-22 Marco Bresciani , Martin Kružík

This paper deals with the mathematical modelling of large strain magneto-viscoelastic deformations. Energy dissipation is assumed to occur both due to the mechanical viscoelastic effects as well as the resistance offered by the material to…

经典物理 · 物理学 2015-02-10 Prashant Saxena , Mokarram Hossain , Paul Steinmann

In this paper, we first derive the compressible Navier-Stokes/Landau-Lifshitz-Gilbert (NS-LLG) model for magnetoelastic materials via the energetic variational approach (EnVarA). It is important to emphasize that the manner in which the…

偏微分方程分析 · 数学 2026-04-23 Boling Guo , Ning Jiang , Hui Liu , Yi-Long Luo , Teng-Fei Zhang

A rate-independent model for the quasistatic evolution of a magnetoelastic thin film is advanced and analyzed. Starting from the three-dimensional setting, we present an evolutionary $\Gamma$-convergence argument in order to pass to the…

偏微分方程分析 · 数学 2014-05-28 Martin Kružík , Ulisse Stefanelli , Chiara Zanini

We study a model for the deformation of a visco-elasto-plastic material that is nearly incompressible. It originates from geophysics, is given in the Eulerian description and combines a Kelvin-Voigt rheology in the spherical part with a…

偏微分方程分析 · 数学 2025-12-22 Thomas Eiter

We study a variational model of magnetoelasticity both in the static and in the quasistatic setting. The model features a mixed Eulerian-Lagrangian formulation, as magnetizations are defined on the deformed configuration in the actual…

偏微分方程分析 · 数学 2025-07-22 Marco Bresciani

We prove existence of weak solutions to an evolutionary model derived for magnetoelastic materials. The model is phrased in Eulerian coordinates and consists in particular of (i) a Navier-Stokes equation that involves magnetic and elastic…

偏微分方程分析 · 数学 2016-08-11 Barbora Benešová , Johannes Forster , Chun Liu , Anja Schlömerkemper

In this paper, in the context of the quasi-magnetostatic approximation, we examine incremental motions superimposed on a static finite deformation of a magnetoelastic material in the presence of an applied magnetic field. Explicit…

软凝聚态物质 · 物理学 2013-02-07 Michel Destrade , Ray W. Ogden

We propose a new reduced model for gravity-driven free-surface flows of shallow elastic fluids. It is obtained by an asymptotic expansion of the upper-convected Maxwell model for elastic fluids. The viscosity is assumed small (of order…

数值分析 · 数学 2013-06-13 François Bouchut , Sébastien Boyaval

Quasistatic evolutions of critical points of time-dependent energies exhibit piecewise smooth behavior, making them useful for modeling continuum mechanics phenomena like elastic-plasticity and fracture. Traditionally, such evolutions have…

最优化与控制 · 数学 2026-01-09 Stefano Almi , Massimo Fornasier , Jona Klemenc , Alessandro Scagliotti

We introduce a simple model of the time evolution of a binary mixture of compressible fluids including the thermal effects. Despite its apparent simplicity, the model is thermodynamically consistent admitting an entropy balance equation. We…

偏微分方程分析 · 数学 2021-09-07 Eduard Feireisl , Madalina Petcu , Bangwei She

We investigate variational problems in large-strain magnetoelasticity, both in the static and in the quasistatic setting. The model contemplates a mixed Eulerian-Lagrangian formulation: while deformations are defined on the reference…

偏微分方程分析 · 数学 2025-07-22 Marco Bresciani , Elisa Davoli , Martin Kružík

A continuum evolutionary model for micromagnetics is presented that, beside the standard magnetic balance laws, includes thermo-magnetic coupling. To allow conceptually efficient computer implementation, inspired by relaxation method of…

偏微分方程分析 · 数学 2013-02-06 Barbora Benešová , Martin Kružík , Tomáš Roubíček

The theory of elastic magnets is formulated under possible diffusion and heat flow governed by Fick's and Fourier's laws in the deformed (Eulerian) configuration, respectively. The concepts of nonlocal nonsimple materials and viscous…

数学物理 · 物理学 2018-05-09 Tomas Roubicek , Giuseppe Tomassetti

We address the question of global in time existence of solutions to a magnetoviscoelastic system with general initial data. We show that the notion of dissipative solutions allows to prove such an existence in two and three dimensions. This…

偏微分方程分析 · 数学 2019-12-23 Martin Kalousek , Anja Schlömerkemper

We consider a variational model for magnetoelastic solids in the large-strain setting with the magnetization field defined on the unknown deformed configuration. Through a simultaneous linearization of the deformation and sharp-interface…

偏微分方程分析 · 数学 2025-07-21 Marco Bresciani , Manuel Friedrich

One of the main theoretical issues in developing a theory of anisotropic viscoelastic media at finite strains lies in the proper definition of the material symmetry group and its evolution with time. In this paper the matter is discussed…

软凝聚态物质 · 物理学 2021-02-03 Jacopo Ciambella , Paola Nardinocchi

In this article, we introduce the concept of energy-variational solutions for a large class of systems of nonlinear evolutionary partial differential equations. Under certain convexity assumptions, the existence of such solutions can be…

偏微分方程分析 · 数学 2023-10-23 Abramo Agosti , Robert Lasarzik , Elisabetta Rocca

We consider a quasistatic nonlinear model in thermoviscoelasticity at a finite-strain setting in the Kelvin-Voigt rheology where both the elastic and viscous stress tensors comply with the principle of frame indifference under rotations.…

偏微分方程分析 · 数学 2023-01-25 Rufat Badal , Manuel Friedrich , Martin Kružík
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