-Compaction is one of the efficient ways to improve the strength and stiffness properties of soils, such as elasticity modulus and shear modulus. Moreover, compaction decreases soil settlement, improves bearing capacity and the stability of sloped embankments. An optimum water content is required to provide the best path to enter energy into soil and compact it. A constant value of energy appli...

We study the elasticity of thermalized spring networks under an applied bulk strain. The networks considered are subisostatic random-bond networks that, in the athermal limit, are known to have vanishing bulk and linear shear moduli at zero bulk strain. Above a bulk strain threshold, however, these networks become rigid, although surprisingly the shear modulus remains zero until a second, highe...

the mechanical properties including elastic stiffness constants as well as bulk modulus of palladium (pd) nanowire were calculated in the constant temperature and pressure (npt), ensemble by molecular dynamics (md) simulation technique. the quantum sutton-chen (q-sc) many-body potential was used to calculate the cohesive energy as well as forces experience by every atoms. the temperature and pr...

OBJECTIVES The aim was to determine the Young's modulus (E), bulk modulus (B), shear modulus (G) and Poisson's ratio (nu) of a series of composite restorative materials and to correlate them with their filler volume-fractions. METHODS Twelve model resin-composite formulations, with systematically varied volume-fraction (Tokuyama), a flowable resin-composite (Point 4 flowable, Kerr) and two hy...

The single-crystal e astic properties of a hydrous ilicate gamet, hibschite (Ca3A12(SiO4)l.72(H404)l.28), were measured using Brillouin spectroscopic techniques. The adiabatic bulk modulus of hibschite, K s = 99.8+1.0 GPa, and the shear modulus, •t = 64.3_--/-0.5 GPa, are 40% lower than the bulk and shear moduli for anhydrous grossular gamet Ca3A12(SiO4) 3. This increased compressibility of hyd...

We re-examine the calculation of the bulk modulus of random networks with a variable mean coordination 〈r〉 that ranges from 〈r〉 = 4 down through the phase transition from rigid to floppy that occurs at around 〈r〉 = 2.4. In contrast to previous workers, we use random-network models, rather than depleted diamond lattices, so our results are more relevant to glasses. We find that the bulk modulus ...