Introduction to Isotropic Compression

The appearance of the intermediate 2D plane indicated the existence of localized anisotropic compression of the gel during the heterogeneous gelation process.

This work highlights the key role that the anisotropic compression of the kinetically arrested state plays in the formation of CNC films and is relevant to the broader case of structure formation in cast dispersions and colloidal self-assembly upon solvent evaporation.

The experimental data and theoretical calculations results show that HfB2 has a distinct anisotropic compression behavior along the a- and c-axes, and the anisotropy increases as the pressure is increasing.

We compare the structural and mechanical properties of mechanically stable (MS) packings of frictional disks in two spatial dimensions (2D) generated with isotropic compression and simple shear protocols from discrete element modeling (DEM) simulations.

It is shown that the strong Jahn–Teller distortion associated with the Cu(OH)6 octahedron is primarily responsible for the discontinuous and highly anisotropic compressional behaviour of the unit cell of CuSn(OH)6 hydroxide perovskite.

A series of isotropic compression tests were carried out to study the behavior of granular material produced under controlled stratification in the laboratory.

To investigate stress-strain behavior of CMC, isotropic consolidated drained (CID) triaxial test and isotropic compression test (ICT) were conducted with different confining pressures in the range of 50–800 kPa.

The isotropic compression behaviour of dense structured geo-materials and the associated degradation at failure is addressed in a non-qualitative manner.

The non-uniform pressure dependence of the lattice parameters may imply that the sample undergoes anisotropic compression with pressure.

In addition, the anisotropic compression during polymerization was also detected, which supports the proposed interpretation of X-ray data reported previously.

The damage rates along the two decomposed segments are derived from the simulated constant-p shear tests and isotropic compression tests.

We investigate anisotropic compression effects on nanocrystalline NiO with a crystalline size (D) of 11.

This paper presents results from a programme of drained triaxial tests performed on densely packed glass beads to establish quantitative interpretation of AE during isotropic compression, shearing and associated stick–slip events.

The low-pressure form of dioptase exhibits anisotropic compression with axial compressibility βa > βc in a ratio of 1.

We report results of synchrotron X-ray diffraction (SXRD) and electrical transport measurements on TaAs2 under pressure up to ~ 37 GPa, which revealed an anisotropic compression of the unit cell, formation of unusual As-As bonds above 9.

Dense samples have been created by the isotropic compression method.

The behavior of these compounds under isotropic compression shows the presence of negative linear compressibility.

Ettringite shows a significant anisotropic compressional pattern, being more compressible on (001) than along [001] (i.

Moreover, it has a considerable anisotropic compression behavior, with the largest compression occurring along a direction close to the a axis and governed by the compression of the LEP and the weak interlayer Sb-O bonds.

By means of these measurements, we studied how the strain-accumulation mechanism affects the coordination number during isotropic compression.

The accuracy of this system has been evaluated in some isotropic compression triaxial tests on compacted sandy-gravel specimens.

The photonic films show a gradual blueshift of structural color upon heating due to anisotropic compression of the inverse opal, of which the rate depends on temperature and cross-linking density.

The effect of isotropic compression on the nanoparticles of Zinc ferrite (ZnFe2O4) compound (∼10 nm) are studied using pressure dependent Raman spectroscopy.

The CSUH model develops the following aspects based on the unified hardening (UH) model: (a) a curved normal compression line in the e-lnp plane is proposed by introducing a parameter to describe the isotropic compression of sands; (b) a drop-shaped yield function, involving a critical state parameter, is adopted to get a better prediction of the shear yield and the critical state of sands; (c) a dilatancy parameter is introduced into the dilatancy equation to consider the density-dependent dilatancy of sands; and (d) different CSLs of sands with different lode’s angles in the e-p plane are considered.

In this study, two types of cement-stabilized soils were studied through isotropic compression, triaxial drained shearing, unconfined compression, and bender element testing.

Specifically, it predicts that induced compression linearly affects the prestressed moduli with a slope determined by their local adiabatic pressure derivatives and that induced deviatoric stress produces anisotropic compressional and shear wave speeds.

One is that only isotropic compression tests are conducted, and the complex stress condition is not considered.

The crystal structures, which consist of cofacially aligned (pancake) π-dimers packed into herringbone arrays, experience a continuous, near-isotropic compression.

The non-uniform pressure dependence of the lattice parameters may imply that the sample undergoes anisotropic compression with pressure.

, constant mean stress shear path and isotropic compression path), a new hardening law, unified hardening law, is proposed to describe the shear contraction and dilatancy in an identical framework.

, the vacancy in the anion sublattice, is based on the fact that, in contrast to shallow impurity centers which trace the intrinsic band under uniform pressure, to which they are genetically related, the energy of deep impurity centers with respect to absolute vacuum remains constant under isotropic compression of the lattice.

In this paper, a series of consolidated drained triaxial permeability-leaching tests, under isotropic compression considering three confining pressures (i.

The anisotropic compression of lattice parameters as well as Co-O bond lengths of the oxygen octahedra have been revealed.

The evolution of the lattice parameters with pressure shows a slight anisotropic compression pattern, with KP0,T0(a):KP0,T0(b):KP0,T0(c) = 1.