Initially saturated, cementitious materials are subject to water movements that responsible for multiple phenomena. Among them, there drying shrinkage, creep, fluid transport, swelling reactions and cracking-induced changes in mechanical properties. The main objective of this study is therefore investigate the impact on behaviour materials. For we carried out two 70-day studies material EDF’s V...

The thermo-mechanical testing of HYSOL FP4549 polymer-filled underfill materials was conducted under different strain rate and temperature environment. A new specimen preparation procedure and further test methodology are developed to characterize the time–temperature mechanical behaviors of underfill materials. The stress–strain behavior of materials is simulated with constitutive framework, a...

Le pli vocal humain possède des propriétés vibratoires remarquables liées à sa structure complexe fortement hétérogène et organisée en différentes couches, ainsi qu’à la microarchitecture de ses réseaux fibreux. Cette est si qu’aucun matériau substitution n’est capable ce jour mimer les performances vibro-mécaniques plis vocaux [1], [2], [3]. Notre projet a pour objectif global d’approfondir co...

Time-dependent creep analysis is presented for the calculation of stresses and displacements of axisymmetric thick-walled cylindrical pressure vessels made of functionally graded material (FGM). For the purpose of time-dependent stress analysis in an FGM pressure vessel, material creep behavior and the solutions of the stresses at a time equal to zero (i.e. the initial stress state) are needed....

RC structures get damaged over time due to several phenomenons such as shrinkage, thermal deformations, creep and corrosion. This damage starts at early age continues during the lifetime of structures. In order account for effects on seismic response structures, a research project combining both an experimental numerical part was conducted. part, two types portal frames that evolved either in e...