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The asymptotic behaviour of the solutions of three-dimensional nonlinear elastodynamics in a thin plate is studied, as the thickness $h$ of the plate tends to zero. Under appropriate scalings of the applied force and of the initial values…

偏微分方程分析 · 数学 2009-12-22 Helmut Abels , Maria Giovanna Mora , Stefan Müller

This paper aims to study the convergence of solutions in three-dimensional nonlinear elastodynamics for a thin rod as its cross section shrinks to zero for displacements that are comparable to the small radius of the rod. Assuming the…

偏微分方程分析 · 数学 2025-10-24 Federico Cianci , Bernd Schmidt

In this paper we consider a family of three-dimensional problems in thermoelasticity for linear elliptic membrane shells and study the asymptotic behaviour of the solution when the thickness tends to zero.We fully characterize with strong…

偏微分方程分析 · 数学 2020-12-22 M. T. Cao-Rial , G. Castiñeira , Á. Rodríguez-Arós , S. Roscani

We derive the model of homogenized von K\'arm\'an shell theory, starting from three dimensional nonlinear elasticity. The original three dimensional model contains two small parameters: the oscillations of the material $\e$ and the…

偏微分方程分析 · 数学 2013-03-15 Peter Hornung , Igor Velcic

We discuss the limiting behavior (using the notion of \Gamma-limit) of the 3d nonlinear elasticity for thin shells around an arbitrary smooth 2d surface. In particular, under the assumption that the elastic energy of deformations scales…

泛函分析 · 数学 2008-03-05 Marta Lewicka , Maria Giovanna Mora , Mohammad Reza Pakzad

We prove that the critical points of the 3d nonlinear elasticity functional on shells of small thickness $h$ and around the mid-surface $S$ of arbitrary geometry, converge as $h\to 0$ to the critical points of the von K\'arm\'an functional…

偏微分方程分析 · 数学 2009-07-10 Marta Lewicka

We study the $\Gamma$-limit of 3d nonlinear elasticity for shells of small, variable thickness, around an arbitrary smooth 2d surface.

数学物理 · 物理学 2008-04-17 Marta Lewicka , Maria Giovanna Mora , Mohammad Reza Pakzad

We construct strong solutions for a nonlinear wave equation for a thin vibrating plate described by nonlinear elastodynamics. For sufficiently small thickness we obtain existence of strong solutions for large times under appropriate scaling…

偏微分方程分析 · 数学 2011-01-06 H. Abels , M. G. Mora , S. Müller

We consider a family of linearly elastic shells with thickness $2\varepsilon$ (where $\varepsilon$ is a small parameter). The shells are clamped along a portion of their lateral face, all having the same middle surface $S$, and may enter in…

数学物理 · 物理学 2016-11-23 Á. Rodríguez-Arós

We summarize some recent results of the authors and their collaborators, regarding the derivation of thin elastic shell models (for shells with mid-surface of arbitrary geometry) from the variational theory of 3d nonlinear elasticity. We…

偏微分方程分析 · 数学 2009-07-10 Marta Lewicka , Reza Pakzad

In this paper we analyze the interaction of an incompressible Newtonian fluid with a linearly elastic Koiter shell whose motion is restricted to transverse displacements. The middle surface of the shell constitutes the mathematical boundary…

偏微分方程分析 · 数学 2012-07-17 Daniel Lengeler , Michael Ruzicka

We derive the time-dependent von K\'arm\'an plate equations from three dimensional, purely atomistic particle models. In particular, we prove that a thin structure of interacting particles whose dynamics is governed by Newton's laws of…

偏微分方程分析 · 数学 2024-11-18 David Buchberger , Bernd Schmidt

We consider a family of linear viscoelastic shells with thickness $2\varepsilon$ ( $\varepsilon$ , small parameter), clamped along a portion of their lateral face, all having the same middle surface $S$. We formulate the three-dimensional…

偏微分方程分析 · 数学 2017-02-16 G. Castiñeira , Á. Rodríguez-Arós

The three-dimensional shapes of thin lamina such as leaves, flowers, feathers, wings etc, are driven by the differential strain induced by the relative growth. The growth takes place through variations in the Riemannian metric, given on the…

偏微分方程分析 · 数学 2014-01-09 Marta Lewicka , L. Mahadevan , Mohammad Reza Pakzad

The Cauchy problem for a nonlinear elastic wave equations with viscoelastic damping terms is considered on the 3 dimensional whole space. Decay and smoothing properties of the solutions are investigated when the initial data are…

偏微分方程分析 · 数学 2021-11-09 Yoshiyuki Kagei , Hiroshi Takeda

The geometrically rigorous nonlinear analysis of elastic shells is considered in the context of finite, but small, strain theory. The research is focused on the introduction of the full shell metric and examination of its influence on the…

数值分析 · 数学 2023-07-19 G. Radenković , A. Borković , B. Marussig

In this paper we derive, by means of $\Gamma$-convergence, the shallow shell models starting from non linear three dimensional elasticity. We use the approach analogous to the one for shells and plates. We start from the minimization…

偏微分方程分析 · 数学 2011-02-15 Igor Velčić

The equations of linearized viscoelastodynamics in Kelvin-Voigt rheology are rigorously derived from a nonlinear model that satisfies the time-dependent frame indifference in the sense of Antman. Besides showing the convergence of…

偏微分方程分析 · 数学 2026-03-04 Barbora Benešová , Malte Kampschulte , Martin Kružík

We study the unsteady incompressible Navier-Stokes equations in three dimensions interacting with a non-linear flexible shell of Koiter type. This leads to a coupled system of non-linear PDEs where the moving part of the boundary is an…

偏微分方程分析 · 数学 2022-11-15 Boris Muha , Sebastian Schwarzacher

We show that, at low inertia and large elasticity, shell models of viscoelastic fluids develop a chaotic behaviour with properties similar to those of elastic turbulence. The low dimensionality of shell models allows us to explore a wide…

流体动力学 · 物理学 2016-03-08 Samriddhi Sankar Ray , Dario Vincenzi
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