24 datasets found

A mathematical model of a composite material randomly reinforced such as TexSol ( mixture of sand and wire) is proposed. For this study, a variational asymptotic...

This thesis analyzes a bone healing model which is then coupled with a model of fluid flow to model bone growth in bioreactors (systems that mimic the in vivo...

We present a new scheme for the discretization of heterogeneous anisotropic diffusion problems on general meshes. With light assumptions, we show that the algorithm...

Waveletteori er en forholdsvis ny matematisk disciplin, som har vakt stor interesse indenfor b°ade teoretisk og anvendt matematik i løbet af det seneste °arti. De...

This report analyzes and validates possible applications of some model reduction methods for direct simulations, and the solving of inverse problems of parameter...

Rapport interne.

Rapport interne.

Rapport interne.

International audience

The main objective of this thesis is to accelerate deflated Conjugate Gradient solvers used for solving the pressure Poisson equation, for the simulation of low-Mach...

The friction noise between two rough surfaces is caused by the vertical vibration generated by inter-asperity impacts of sliding solids. This phenomenon involves the...

We deal with some mathematical questions in fluid mechanics. The framework of this study is decomposed in two thematics : bi-layer models with free surface or...

A numerical modeling of high concrete face rockfill dam (CFRD) has been considered in order to better understand the pathology of cracks observed in the recently...

During the 40's, W.F. Brown introduced the micromagnetism theory to explain the behaviour of non-linear magnetic materials : the ferro and ferrimagnetics.<br...

The thesis has two independent parts. The first part concerns the convergence toward equilibrium of discrete gradient flows or, with more generality, of some...

International audience

The aim of this paper is to present a study on the relationship between crack geometrical properties (width and area) and water permeability evolution in a cracking...

Several tests, devoted to the study of cracking due to autogenous and drying shrinkage, exist in the literature. They are generally not relevant for the study of...

Understanding and modeling a lubricated contact in the presence of surface textures requires a refined physical description in order to comprehend and explain the...

A significant number of existing concrete dams are at present deteriorated by chemo-mechanical processes known as Alkali-Aggregate Reactions (AAR). This phenomenon is...