The present paper demonstrates how a natural crack mosaic resembling random tessellation evolves with repeated 'wetting followed by drying' cycles. system here is network in drying colloidal material, for example, layer of mud. A spring model used to simulate consecutive wetting and cycles mud layers until the matures. simulated results compare favourably reported experimental findings. evoluti...

Abstract The understanding of the weakening mechanism tensile strength rock subjected to cyclic wetting-drying is critical for engineering. Tensile tests were conducted on a total 35 sandstone specimens with different cycles. crack propagation process and acoustic emission characteristics tested samples obtained through high-speed camera system. results indicate that observably reduced after we...

Lime treatment can enhance the workability and hydro-mechanical properties of soil through different physical-chemical reactions. Nevertheless, beneficiary effect lime be altered when was exposed to wetting-drying cycles, depending on wetting fluid state. In present study, changes in small strain shear modulus (Gmax) microstructure a compacted lime-treated silt under cycles were studied. The un...

• The degradation of performance after wetting and drying cycles is quantified through a stress-dilatancy approach. extent the function intensity cycles. process varies as binder dosage. results highlight role imposed wetting/drying technique for better assessment long-term treated soils. core objective this study to analyse impact protocol on mechanical behaviour cement-treated sand. two types...

A finite-volume method for the one-dimensional shallow-water equations including topographic source terms is presented. Exploiting an original idea by Leroux, the system of partial-differential equations is completed by a trivial equation for the bathymetry. By applying a change of variable, the system is given a celerity-speed formulation, and linearized. As a result, an approximate Riemann so...

Piezoelectric films of poly(vinylidene fluoride) (PVDF) were prepared by casting and spin coating on silicon and glass substrates. The effect of the drying temperature and the post-annealing temperature on the film morphology was studied with optical microscopy. It was chosen the optimal combination of deposition conditions, regarding the wetting of the substrate surfaces, uniformity of the pro...

Review of the state-of-the-art on fungal damage of wood materials showed that a combination of period of cumulative time when moisture and thermal regimes are above specified minimum is needed for fungal activities to cause biological decay in wood. The long-term performance of a typical wall assembly was evaluated using an existing computer model of heat, moisture, and air transfer in conjunct...

We extend the density functional approach to the statistical mechanics of inhomogeneous fluids to calculate the rate of heterogeneous nucleation of the gas-to-liquid transition by a planar solid substrate. Comparison with classical nucleation theory ~extended to incorporate the line tension that results from three-phase contact! reveals the inadequacy of the latter approaches as the spinodal is...

BACKGROUND: Rhers, reservoirs, and estuaries have been modeled for a number of years using the U.S. Army Corps of Engineers TABS numerical modeling system. TABS is a family of numerical models that can simulate hydrodynamic, sediment, and constituent transport processes in these water bodies. One of the most attractive features of the TABS system is the ability to simulate wetting and drying of...

A wetting and drying scheme (WDS) is developed to incorporate into a threedimensional sigma-coordinate coastal ocean model with proposing an extended logarithmic profile within bed boundary layers to accurately simulate hydrodynamics in extremely shallow coastal seas. While WDS is simplistically formulated, it conserves water mass and has a good agreement with the analytical solution. The model...