THE GENERAL weight function expressions given in GAO (J. Mech. Phys. Solids 37, 133, 1989). referred to here as part I, for combined-mode crack-dislocation interaction problems in the three-dimensional regime are applied to solve for the stress field and energy of a shear dislocation loop emerging from the tip of a half-plane crack. The results are compared to the previously proposed approximat...

Strain in sheared dense granular material is often localized in a narrow region called the shear band. Recent experiments in a modified Couette cell provided localized shear flow in the bulk away from the confining walls. The nontrivial shape of the shear band was measured as the function of the cell geometry. First, we present a geometric argument for narrow shear bands that connects the funct...

This paper presents results from Monte Carlo (MC) and molecular dynamics (MD) simulations on the shear-induced longranged alignment of cylindrical micelles in thin films. The surfactant is represented on a lattice and the shear flow is simulated via incorporation of a shear-induced potential energy term within the acceptance criteria in the MC simulations. The MD simulations are conducted on a ...

The steady state thermodynamic properties of a binary-phase shear fluid are studied quantitatively using the compressible lattice Boltzmann BGK theory with mesoscopic inter-particle potentials. For the Newtonian van der Waals fluid, numerical calculation shows that the effect of boundary shear on steady state phase diagram of immiscible phases is negligible when the fluid is not in the near-cri...

Investigating the elasticity of ocular tissue (cornea and intraocular lens) could help the understanding and management of pathologies related to biomechanical deficiency. In previous studies, we introduced a setup based on optical coherence tomography for shear wave elastography (SWE) with high resolution and high sensitivity. SWE determines tissue stiffness from the propagation speed of shear...

We have shown in the previous lectures that the −vU ′ term in the u equation, that is ∂tu = −vU ′ + · · · , is the key term leading to momentum transport −uv ∼ vvU ′t and perturbation energy production −uv U ′ ∼ vv(U ′)2t > 0. This term is the redistribution of streamwise velocity that releases energy from the background shear to enable bifurcation to turbulent flow. However, in shear flows we ...

A linear stability analysis of rotating Boussinesq flows including shear, μ-gradients and radiation losses leads to modification of the classical Ledoux criterion for convective equilibrium. The role of shear in spreading the radial extent of the convective layers is briefly investigated, and we found that some effects may be expected in the latest nuclear evolutionary stages of massive stars, ...

This article reviews the recent theories and models of space-time energy spectra in turbulent shear flows. The review is based on picture passage proposed by Taylor's frozen-flow hypothesis Kraichnan-Tennekes random sweeping hypothesis: convection small-scale eddies large-scale with a certain distortion, which determines peaks bandwidths spectra. data-refined stochastic data-based reconstructio...