Railways employ a range of different railway track forms. Here, ballasted design is compared to three slab solutions. The designs are using both life cycle analysis (LCA) and methodology for simulation three-dimensional vertical dynamic vehicle–track interaction, which has been verified versus field measurements. interaction between vehicle simulated in the time domain an extended state-space v...

In this paper, properties of slab deformation in sizing press mill as one of the slab reduction processes in hot rolling mills have been evaluated using the elastoviscoplastic finite element method with explicit formulation. Effect of prarameters such as initial slab width and thickness, reduction, feed pitch, and anvil speed on factors such as dogbone formation, head and tail fishtail profile,...

Because of its superior properties, stainless steel has been widely used for many applications. Nonmetallic inclusions can influence the quality products. A set samples was to track response inclusion composition during processing a heat titanium-bearing 18% chromium steel, from deoxidation after decarburization, solidified slab. The oxide responded as expected additions deoxidizers and calcium...

the main design criteria of ballasted railway tracks include rail deflections, rail bending stresses, rail wheel contact stresses, sleeper bending moments and ballast sleeper contact pressures. numerous criteria have been defined for the design of ballasted railway tracks owing to the various mechanical properties of track components and their complex interaction. therefore, railway track desig...

Weaker sections of a railway track, such as the approach sections, are prone to differential settlement under action repeated train loads. The tracks degrade more quickly at critical section adjacent traditional rail bridge because progressive deterioration. Opting for an integral abutment instead is gaining importance due its improved performance in terms track stiffness and reduced settlement...

Lattice-type bi-block reinforced concrete (RC) sleepers have been widely used for cast-in-place slab tracks. However, the standards manufacturing, inspection, and performance verification of lattice-type RC are not well established, even when such a sleeper is critical component track. Therefore, it necessary to develop new standard sleepers. In this study, requirements relevant were investigat...

[1] Although mantle slabs ultimately drive plate motions, the mechanism by which they do so remains unclear. A detached slab descending through the mantle will excite mantle flow that exerts shear tractions on the base of the surface plates. This ‘‘slab suction’’ force drives subducting and overriding plates symmetrically toward subduction zones. Alternatively, cold, strong slabs may effectivel...