Abstract: Casing treatment design and application typically focus on improving stall margin while minimizing efficiency penalty for tip-loaded rotors. When successful casing treatment configurations are found, it often is assumed ...

Abstract: This study proposed a coupling discrete-element method–finite-element method (DEM-FEM) to investigate the ballast–sleeper interaction under dynamic loading. A surface-coupling algorithm was used to combine the finite-element ...

Abstract: This study proposed a coupling discrete-element method–finite-element method (DEM-FEM) to investigate the ballast–sleeper interaction under dynamic loading. A surface-coupling algorithm was used to combine the finite-element ...

Abstract: The pressure distribution under the crossties plays a key role in railroad performance. This study conducts laboratory testing to investigate the pressure distributions under two different types of crossties, steel and ...

Abstract: Open-graded friction course (OGFC), also called permeable friction course (PFC), is a thin and permeable asphalt concrete whose skeleton is composed mainly of coarse aggregate, leading to an immediate drainage of water and ...

Abstract: In this study, superabsorbent polymers (SAP) were introduced as an admixture in subgrade soils for the potential of improving their moisture susceptibility under moisture variation conditions. A series of experiments was ...