Assessment and Prediction of Particle Breakage under Cyclic Loading. Every year, transport industries spend millions of dollars to maintain existing tracks suffering excessive settlement due to heavy traffic. In railways, differential settlement and track fouling are mostly due to ballast breakage. Frequent maintenance requires large amounts of quarried ballast causing environmental degradation. Simulation of particle breakage subject to cyclic loading is pioneering fundamental research that wi ....Assessment and Prediction of Particle Breakage under Cyclic Loading. Every year, transport industries spend millions of dollars to maintain existing tracks suffering excessive settlement due to heavy traffic. In railways, differential settlement and track fouling are mostly due to ballast breakage. Frequent maintenance requires large amounts of quarried ballast causing environmental degradation. Simulation of particle breakage subject to cyclic loading is pioneering fundamental research that will have significant impact on the design and maintenance of future rail and road networks. A full understanding of the breakage mechanisms of aggregates will lead to innovative techniques in design and construction, including faster trains carrying heavier loads with reduced maintenance costs.Read moreRead less
Stabilization of railway subgrade by lime-flyash slurry injection. The rail network in Australia provides a major transport route for commuters as well as transportation of goods. The subgrade of railway track should provide adequate support for the overlying ballast and capping layers. Hence, a poor subgrade always results in track problems associated with uneven track, fouled ballast, and misalignment of the track. This project will investigate in detail the fundamental mechanisms and key para ....Stabilization of railway subgrade by lime-flyash slurry injection. The rail network in Australia provides a major transport route for commuters as well as transportation of goods. The subgrade of railway track should provide adequate support for the overlying ballast and capping layers. Hence, a poor subgrade always results in track problems associated with uneven track, fouled ballast, and misalignment of the track. This project will investigate in detail the fundamental mechanisms and key parameters involved in the improvement of subgrade soil by injecting lime-flyash slurry. This project will develop an improved design procedure for lime-flyash slurry injection in the field based on experimental and numerical modelling.Read moreRead less
Development of a Local Spectral Method for the Computations of Thin-Walled Structures. This project will benefit Aust. society by providing a powerful tool for improving the safe and cost effective design of structures under extreme conditions (high frequency vibration, complicating supporting conditions). The method has the potential to be further developed to provide solutions to unsolved problems in acoustic wave transport, short electromagnetic wave propagation etc. The research training of ....Development of a Local Spectral Method for the Computations of Thin-Walled Structures. This project will benefit Aust. society by providing a powerful tool for improving the safe and cost effective design of structures under extreme conditions (high frequency vibration, complicating supporting conditions). The method has the potential to be further developed to provide solutions to unsolved problems in acoustic wave transport, short electromagnetic wave propagation etc. The research training of the project will help to keep Australia to be at the forefront in this research field and the published research findings will promote the reputation of Australian researchers in the field of computational engineering. The international collaboration will be strengthened between the Investigator's team and his colleagues in US. Read moreRead less