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We consider the inverse problem of determining the possible presence of an inclusion in a thin plate by boundary measurements. The plate is made by non-homogeneous linearly elastic material belonging to a general class of anisotropy. The…

偏微分方程分析 · 数学 2011-09-16 Antonino Morassi , Edi Rosset , Sergio Vessella

In this paper we consider the inverse problem of determining a rigid inclusion inside a thin plate by applying a couple field at the boundary and by measuring the induced transversal displacement and its normal derivative at the boundary of…

偏微分方程分析 · 数学 2011-11-03 Antonino Morassi , Edi Rosset , Sergio Vessella

We consider the problem of determining, within an elastic isotropic nanoplate in bending, the possible presence of an inclusion made of different elastic material. Under suitable a priori assumptions on the unknown inclusion, we provide…

偏微分方程分析 · 数学 2023-05-10 Antonino Morassi , Edi Rosset , Eva Sincich , Sergio Vessella

In this paper we consider the stability issue for the inverse problem of determining an unknown inclusion contained in an elastic body by all the pairs of measurements of displacement and traction taken at the boundary of the body. Both the…

偏微分方程分析 · 数学 2016-10-06 Antonino Morassi , Edi Rosset

This paper focuses on an inverse problem associated with the plate equation which is derived from models in fluid mechanics and elasticity. We establish the unique identifying results in simultaneously determining both the unknown density…

偏微分方程分析 · 数学 2023-01-20 Yixian Gao , Hongyu Liu , Yang Liu

In this paper we consider the inverse problem of determining, within an elastic isotropic thick plate modelled by the Reissner-Mindlin theory, the possible presence of an inclusion made of a different elastic material. Under some a priori…

偏微分方程分析 · 数学 2018-01-17 Antonino Morassi , Edi Rosset , Sergio Vessella

An asymptotic analysis is performed for thin anisotropic elastic plate clamped along its lateral side and also supported at a small area $\theta_{h}$ of one base with diameter of the same order as the plate thickness $h\ll1.$ A…

偏微分方程分析 · 数学 2017-04-20 G. Buttazzo , G. Cardone , S. A. Nazarov

In this paper, we prove that the inverse problems for 2D elasticity and for the thin plate with boundary data (finite or full measurements) are equivalent. Having proved this equivalence, we can solve inverse problems for the plate equation…

偏微分方程分析 · 数学 2012-03-20 Hyeonbae Kang , Graeme Milton , Jenn-Nan Wang

A thin anisotropic elastic plate clamped along its lateral side and also supported at a small area $\theta_{h}$ of one base is considered; the diameter of $\theta_{h}$ is of the same order as the plate relative thickness $h\ll1$. In…

数学物理 · 物理学 2017-04-20 G. Buttazzo , G. Cardone , S. A. Nazarov

In this paper we consider the inverse problem of determining a rigid inclusion inside a thin plate by applying a couple field at the boundary and by measuring the induced transversal displacement and its normal derivative at the boundary of…

偏微分方程分析 · 数学 2018-06-25 Antonino Morassi , Edi Rosset , Sergio Vessella

We consider the inverse problem of identifying an unknown inclusion contained in an elastic body by the Dirichlet-to-Neumann map. The body is made by linearly elastic, homogeneous and isotropic material. The Lam\'e moduli of the inclusion…

偏微分方程分析 · 数学 2016-05-31 Giovanni Alessandrini , Michele Di Cristo , Antonino Morassi , Edi Rosset

We derive upper and lower estimates of the area of unknown defects in the form of either cavities or rigid inclusions in Mindlin-Reissner elastic plates in terms of the difference $\delta W$ of the works exerted by boundary loads on the…

偏微分方程分析 · 数学 2020-01-28 Antonino Morassi , Edi Rosset

A classical problem in elasticity theory involves an inhomogeneity embedded in a material of given stress and shear moduli. The inhomogeneity is a region of arbitrary shape whose stress and shear moduli differ from those of the surrounding…

材料科学 · 物理学 2009-11-13 Joachim Mathiesen , Itamar Procaccia , Ido Regev

Non-Euclidean plates are a subset of the class of elastic bodies having no stress-free configuration. Such bodies exhibit residual stress when relaxed from all external constraints, and may assume complicated equilibrium shapes even in the…

软凝聚态物质 · 物理学 2009-11-13 Efi Efrati , Eran Sharon , Raz Kupferman

The existing theory of incompatible elastic sheets uses the deviation of the surface metric from a reference metric to define the strain tensor [Efrati et al., J. Mech. Phys. Solids {\bf 57}, 762 (2009)]. For a class of simple axisymmetric…

软凝聚态物质 · 物理学 2017-05-24 Oz Oshri , Haim Diamant

We analyse the behaviour of thin composite plates whose material properties vary periodically in-plane and possess a high degree of contrast between the individual components. Starting from the equations of three-dimensional linear…

偏微分方程分析 · 数学 2022-05-03 Marin Bužančić , Kirill Cherednichenko , Igor Velčić , Josip Žubrinić

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

The complete set of bounds for the technical constants of an elastic layer, plate or laminate is given. The bounds are valid in general, also for completely anisotropic bodies. They are obtained transforming the polar bounds previously…

经典物理 · 物理学 2023-11-15 Paolo Vannucci

We study inverse problems in anisotropic elasticity using tools from algebraic geometry. The singularities of solutions to the elastic wave equation in dimension $n$ with an anisotropic stiffness tensor have propagation kinematics captured…

Non-Euclidean plates are thin elastic bodies having no stress-free configuration, hence exhibiting residual stresses in the absence of external constraints. These bodies are endowed with a three-dimensional reference metric, which may not…

软凝聚态物质 · 物理学 2009-05-29 Efi Efrati , Eran Sharon , Raz Kupferman
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