...Yi Sui; Zongming Su; Yijiang Peng Purpose The porosity of lightweight aggregate concrete (LWAC) plays a fundamental role in dictating its meso-scale damage evolution and macroscopic mechanical response. However, the quantitative relationship between porosity and the fractal dimension of crack...

... + ξ h ) n Static deflection Thermomechanical loading FGM Porosity HSDT MATLAB Functionally graded materials (FGMs) are a type of engineered material with varied compositions across uni/multi-directions. This purposeful design enables FGMs to perform customized functions...

... analogy (RDA). In this study, changes in creep coefficient, Poisson's ratio, damage variables, modulus of elasticity, strength and angle of internal friction as a function of porosity are defined by P and S wave velocities. The RDA model provides a description of the degradation process of material...

..., and the current sharing roles of filament to filament bridges. Findings The model predicts the quantitative dependence of J_c on the number of Bi2212 filaments in each bundle of a double-restack wire and porosity. The results are useful optimizing design and fabrication of Bi2212...

... material for use in urban drainage systems since it can lead to reduced flooding and to the possibilities of stormwater harvesting and reuse. However, the high porosity is due in the main part to the lack of fine aggregate particles used in the manufacture of porous concrete. The purpose of this paper...