Densités d'énergie et matériaux cristallins
Dependence of the buckling load of a nonshallow arch with respect to the shape of its midcurve
Déplacements à déformations bornées et champs de contrainte mesures
Deterioration of a finite element method for arch structures when the thickness goes to zero.
Development of a finite-element-based design sensitivity analysis for buckling and postbuckling of composite plates.
Direct approach to mean-curvature flow with topological changes
This contribution deals with the numerical simulation of dislocation dynamics. Dislocations are described by means of the evolution of a family of closed or open smooth curves , . The curves are driven by the normal velocity which is the function of curvature and the position. The evolution law reads as: . The motion law is treated using direct approach numerically solved by two schemes, i. e., backward Euler semi-implicit and semi-discrete method of lines. Numerical stability is improved...
Discrete forms of Friedrichs' inequalities in the finite element method
Discretization by Finite Elements of a Model Parameter Dependent Problem.
Discretization of the Timoshenko Beam Probelm by the p and the h-p Versions of the Finite Element Method.
Dislocation dynamics - analytical description of the interaction force between dipolar loops
The interaction between dislocation dipolar loops plays an important role in the computation of the dislocation dynamics. The analytical form of the interaction force between two loops derived in the present paper from Kroupa’s formula of the stress field generated by a single dipolar loop allows for faster computation.
Domain decomposition method and elastic multi-structures: the stiffened plate problem.
Dual finite element analysis for contact problem of elastic bodies with an enlarging contact zone
Dual finite element analysis of the contact problem of two elastic bodies with an enlarging contact zone is presented. Approximations of the solution are defined on two types of triangulations by piecewise constant stress fields. Convergence is proved in both cases.
Dynamic frictional contact of a viscoelastic beam
In this paper, we study the dynamic frictional contact of a viscoelastic beam with a deformable obstacle. The beam is assumed to be situated horizontally and to move, in both horizontal and tangential directions, by the effect of applied forces. The left end of the beam is clamped and the right one is free. Its horizontal displacement is constrained because of the presence of a deformable obstacle, the so-called foundation, which is modelled by a normal compliance contact condition. The effect...