Jv
JGM van Mier
info
Please Note
<p>This page displays the records of the person named above and is not linked to a unique person identifier. This record may need to be merged to a profile.</p>
8 records found
1
Drying of Porous Media
Numerical and Experimental Approach
Drying of porous media, such as cement paste, is observed through different types of experiments at meso- and micro-scales. Important aspect is the transport of water through the porous material. The results from Nuclear Magnetic Resonance (NMR) drying experiments have been numerically modeled by means of Lattice Gas Automaton (LGA) from Statistical Physics. It is shown that numerical modeling with LGA can be an approximate fit to the moisture flow, through the capillaries, in the cement paste samples. For the sake of comparisons, temporal and spatial scales are yet to be found.
...
Drying of porous media, such as cement paste, is observed through different types of experiments at meso- and micro-scales. Important aspect is the transport of water through the porous material. The results from Nuclear Magnetic Resonance (NMR) drying experiments have been numerically modeled by means of Lattice Gas Automaton (LGA) from Statistical Physics. It is shown that numerical modeling with LGA can be an approximate fit to the moisture flow, through the capillaries, in the cement paste samples. For the sake of comparisons, temporal and spatial scales are yet to be found.
Discrete and continuum models, used to study fracture of concrete and rock, rely on an accurate identification of the model parameters. The determination of the parameters, that cannot be measured directly in laboratory experiments, requires the development of a procedure in the framework of Inverse Problems. The Kalman filter methodology is adopted as inverse technique to identify the parameters in the gradient-enhanced continuum damage model. The identification process exploits the experimental data generated in the cable loaded uniaxial tensile tests performed on single-edge-notched sandstone specimens in the Microlab of Delft University of Technology. Various aspects of the Kalman filter technique have been discussed.
...
Discrete and continuum models, used to study fracture of concrete and rock, rely on an accurate identification of the model parameters. The determination of the parameters, that cannot be measured directly in laboratory experiments, requires the development of a procedure in the framework of Inverse Problems. The Kalman filter methodology is adopted as inverse technique to identify the parameters in the gradient-enhanced continuum damage model. The identification process exploits the experimental data generated in the cable loaded uniaxial tensile tests performed on single-edge-notched sandstone specimens in the Microlab of Delft University of Technology. Various aspects of the Kalman filter technique have been discussed.