Sur les fréquences de diffusion (scattering) d'un corps élastique couplé avec l'air
Sur les modèles de lignes plastiques en mécanique de la rupture
Sur les vibrations transversales des fils et des lames d'une faible épaisseur
Sur un problème de perturbation singulière (I): Elasticité.
Este trabajo está consagrado al estudio de un problema de perturbación singular que aparece en la teoría de la elasticidad.
Sur un problème de perturbation singulière (II): Elasticité.
Este artículo es continuación de (I). Está consagrado al estudio de un problema de perturbación singular proveniente de la teoría de la elasticidad.
Sur un problème d'optimisation ou la contrainte porte sur la fréquence fondamentale
Sur une méthode de calcul de structures soumises à des chargements cycliques : l'homogénéisation en temps
Surface energies in a two-dimensional mass-spring model for crystals
We study an atomistic pair potential-energy E(n)(y) that describes the elastic behavior of two-dimensional crystals with natoms where characterizes the particle positions. The main focus is the asymptotic analysis of the ground state energy asn tends to infinity. We show in a suitable scaling regime where the energy is essentially quadratic that the energy minimum of E(n) admits an asymptotic expansion involving fractional powers of n: The bulk energy densityEbulk is given by an explicit expression...
Surface energies in a two-dimensional mass-spring model for crystals
We study an atomistic pair potential-energy E(n)(y) that describes the elastic behavior of two-dimensional crystals with n atoms where characterizes the particle positions. The main focus is the asymptotic analysis of the ground state energy as n tends to infinity. We show in a suitable scaling regime where the energy is essentially quadratic that the energy minimum of E(n) admits an asymptotic expansion involving fractional powers of n: The bulk energy density Ebulk is given by an explicit expression...
Surface waves in higher order viscoelastic media under the influence of gravity.
Surface waves: Propagation and localization
Sweeping preconditioners for elastic wave propagation with spectral element methods
We present a parallel preconditioning method for the iterative solution of the time-harmonic elastic wave equation which makes use of higher-order spectral elements to reduce pollution error. In particular, the method leverages perfectly matched layer boundary conditions to efficiently approximate the Schur complement matrices of a block LDLT factorization. Both sequential and parallel versions of the algorithm are discussed and results for large-scale problems from exploration geophysics are presented....
Symmetric equilibria for a beam with a nonlinear elastic foundation.
Symmetrization of the nonlinear system of gas dynamics equations.
Symmetry in rearrangement optimization problems.
Symplectic analytical solutions for the magnetoelectroelastic solids plane problem in rectangular domain.
Synchronization with error bound of non-identical forced oscillators
Synchronization with error bound of two non-identical forced oscillators is studied in the paper. By introducing two auxiliary autonomous systems, differential inequality technique and active control technique are used to deal with the synchronization of two non-identical forced oscillators with parameter mismatch in external harmonic excitations. Numerical simulations show the effectiveness of the proposed method.
Systems for phase transitions with hysteresis effect