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- Giuseppe Geymonat, Vanda Valente
- SIAM J. Control and Optimization
- 2000

In this Note we study a parameter identification problem associated with a two-dimensional mechanical problem. In a first part, the experimental technique of determining the displacement field is presented. The variational method proposed herein is based on the minimization of a separately convex functional which leads to the reconstruction of the elastic… (More)

- Francesco Bonaldi, Giuseppe Geymonat, Francoise Krasucki, FRANCESCO BONALDI, GIUSEPPE GEYMONAT, F. Krasucki
- 2017

A famous theorem of E. Gagliardo gives the characterization of traces for Sobolev spaces W 1, p (Ω) for 1 ≤ p < ∞ when Ω ⊂ R is a Lipschitz domain. The extension of this result to W m, p (Ω) for m ≥ 2 and 1 < p < ∞ is now well-known when Ω is a smooth domain. The situation is more complicated for polygonal and polyhedral domains since the characterization… (More)

- F. Bonaldi, G. Geymonat, F. Krasucki, M. Serpilli, FRANCESCO BONALDI, GIUSEPPE GEYMONAT
- 2017

We present an asymptotic two-dimensional plate model for linear magnetoelectro-thermo-elastic sensors and actuators, under the hypotheses of anisotropy and homogeneity. Four different boundary conditions pertaining to electromagnetic quantities are considered, leading to four different models: the sensor-actuator model, the actuatorsensor model, the… (More)

We give a new derivation, based on the complementary energy formulation, of a simplified model for a multi-structure made up of two anisotropic hyper-elastic bodies connected by a thin strong material layer. The model is obtained by identifying the Mosco-limit of the stored complementary energy functional when the thickness is of order ε and the stiffness… (More)

- G. Geymonat
- 2013

At a first glance asymptotic expansions and domain decomposition are two alternatives to efficiently solve multi scale elasticity problems. In this paper we will combine these two methods: we will use, for several types of problems, asymptotic expansions and show that for an efficient implementation of problems obtained at the asymptotic limit it may be… (More)

- T. Weller, G. Geymonat
- 2013

Traditionally, one inquires as to what is the form of a physical property tensor invariant under the point group of a crystal. For example, one finds listings showing 16 distinct forms of the piezomagnetic tensor that can arise in a crystal. Alongside each of these 16 distinct forms is listed the point groups which give rise to that specific form (see Birss… (More)

We apply here the harmonic and Cartan decomposition techniques to piezoelectric material symmetries classification. We show in particular that we shall reduce from 19 to 17 the number of symmetry classes corresponding to the piezoelectric phenomenon. To cite this article: G. Geymonat, T. Weller, C. R. Acad. Sci. Paris, Ser. I 335 (2002) 847–852. 2002… (More)