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Full-Text Articles in Engineering

State Dependent Properties Of Rail Pads, Sakdirat Kaewunruen, Alexander Remennikov Apr 2009

State Dependent Properties Of Rail Pads, Sakdirat Kaewunruen, Alexander Remennikov

Faculty of Engineering - Papers (Archive)

Rail pad is one of the main components in ballasted railway track systems. It is inserted between the rail and the sleeper to attenuate dynamic wheel/rail interaction forces, preventing the underlying railway track components from excessive stresses. Generally, the dynamic design of tracks relies on the available data, which are mostly focused on the structural condition at a specific toe load. Recent findings show that track irregularities could significantly amplify the loads on railway tracks. This phenomenon gives rise to a concern that the rail pads may experience higher deterioration rate than anticipated in the past. On this ground, an …


The Wetting Of Liquid Iron Carbon On Aluminate Minerals Formed During Coke Dissolution In Iron, B. J. Monaghan, M. Chapman, S A. Nightingale Jan 2009

The Wetting Of Liquid Iron Carbon On Aluminate Minerals Formed During Coke Dissolution In Iron, B. J. Monaghan, M. Chapman, S A. Nightingale

Faculty of Engineering - Papers (Archive)

From previous studies by the authors on the effects of mineral layer formation at coke-iron boundary during coke dissolution it was found that the composition and morphology of the layer had a profound affect on the kinetics of reaction. Moreover it was found that the layer was primarily composed of calcium aluminate’s that over time (0-120 minutes) became progressively enriched with calcium. The minerals identified in the layer were alumina, CA6, CA2 and CA. Given that coke dissolution in iron is a heterogeneous reaction it can be expected that the wetting of iron on these minerals would have a significant …