Shear localization has been observed in liquid lubricants flowing at high pressure. Two kinds have been identified: for stresscontrolled plane Couette shear at high values of Nahme No., thermal runaway can result in the appearance of a band at midplane where the temperature and shear rate become localized. Alternatively, at high pressure and high shear stress, intermittent slip can be visualize...

Under an applied traction, highly concentrated suspensions of solid particles in fluids can turn from a state which they flow to counteract the traction as elastic solid: shear-jammed state. Remarkably, suspension back flowing simply by inverting traction. A tensorial model is presented and tested paradigmatic cases. We show that, reproduce phenomenology shear jamming generic geometries, it nec...

Stress boundary integral equations (BIEs) are required in elastic or inelastic analyses of plate bending problems to obtain distributed shear, bending and twisting moments. Traction BIE, which is important to perform fracture analyses, is directly related to stress BIE. The collocation point position and the strategy to treat improper integrals are essential features studied in BIE for traction...

This analytical study demonstrates shear elastic wave propagation in stratified waveguide with emphasis on localisation effects using the propagator matrix method. The consists of two-phase piecewise homogeneous periodically arranged finite number sub-layers along thickness. Analytical solutions are carried out for traction free waveguide. existence two modal types guided waves is established: ...

Endothelial cells respond to fluid shear stress through mechanotransduction responses that affect their cytoskeleton and cell-cell contacts. Here, endothelial cells were grown as monolayers on arrays of microposts and exposed to laminar or disturbed flow to examine the relationship among traction forces, intercellular forces, and cell-cell junctions. Cells under laminar flow had traction forces...

We develop here a microfabrication compatible force measurement technique termed as ultrasoft polydimethylsiloxane-based traction force microscopy (UPTFM). This technique is devised for mapping the cellular traction forces imparted on the adhering substrate, so as to depict the physiological state of the cells surviving in the micro-confinement. We subsequently integrate the technique with a mi...

This paper presents a comprehensive wheel model that can quantitatively evaluate traction performance of flexible/rigid wheels driving on deformable terrain. The proposed model exploits a terramechanics-based approach with taking account of pressures generated by wheel elasticity as well as terrain stiffness. Deflection of a flexible wheel typically depends on a relative pressure between the wh...

Abstract-A solution to the equations of elastic equilibrium is developed in terms of two harmonic functions, such that on a certain plane, normal stresses are identically zero, whilst tangential stresses and displacements are expressible as simple derivatives. The solution is used to solve the problem of the penny-shaped crack subjected to an arbitrary tangential traction and the corresponding ...