A number of structures worldwilde are known to suffer from chemically induced expansion of the concrete. The proposed benchmark includes two sets of problems : on the material scale concrete specimens, and at the structural scale.
The goal of this paper is to investigate the propagation of two-dimensional elastic Bloch waves in helical periodic structures, obeying two discrete screw symmetries about the same axis. First, a three-dimensional coordinate system is built from the two helical directions of periodicity of the problem and the radial coordinate originating from the ...
The effect of bonding cementation on the elastic properties of model granular materials is investigated by grain-level numerical simulations. Two different morphologies are studied, bridging cementation, for which the cement concentrates in cylindrical connections, with radius a, between contacting or neighboring grains separated by a distance smal...
La méthode des inclusions rigides est un procédé de renforcement de sol, qui permet la construction de structures sur des sols compressibles. Cette méthode quoi qu'étudiée par le passé, continue de faire l'objet d'investigations et ce travail de fin d'études porte sur un usage étonnant de cette méthode : le cas d'une semelle sur inclusions rigides....
Published in BioMedical Engineering OnLine
BackgroundThe axial motion of aortic root (AR) due to ventricular traction was previously suggested to contribute to ascending aorta (AA) dissection by increasing its longitudinal stress, but AR in-plane motion effects on stresses have never been studied. The objective is to investigate the contribution of AR in-plane motion to AA stress levels.Met...
Electrical resistivity is sensitive to various properties of concrete, such as water content. Usually used on the surface of old structures, devices for measuring such properties could also be adapted in order to be embedded inside the constitutive concrete of the linings of new tunnels or in new bridges, to contribute to structural health monitori...
Delayed ettringite formation (DEF) is a concrete pathology which may occur in structural parts submitted to high temperature during their casting, such as some massive elements cast in-situ. DEF consequences can lead to structural disorders (expansions, cracking, deterioration of mechanical properties), which modify and jeopardize structures servic...
13th International Workshop on Railway Noise, GAND, BELGIQUE, 16-/09/2019 - 20/09/2019
The modeling of contact is one of the main features of contact dynamics in the context of friction-induced vibrations. It can have a strong impact on the numerical results and consequently on the design choices during the optimization or specification of industrial mechanical systems. This is particularly the case for scientific studies interested ...
COMPDYN 2019 : 7th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, HERSONISSOS, GRECE, 24-/06/2019 - 26/06/2019
