Browsing School of Engineering by Author "Athukorala, Asitha C."

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Characterisation of head-hardened rail steel in terms of cyclic plasticity response and microstructure for improved material modelling

Athukorala, Asitha C.; De Pellegrin, Dennis V.; Kourousis, Kyriakos I. (Elsevier, 2016)

Stress- and strain-controlled tests of heat treated high-strength rail steel (Australian Standard AS1085.1) have been performed in order to improve the characterisation of the said material׳s ratcheting and fatigue wear ...
A unified material model to predict ratcheting response in head-hardened rail steel due to non-uniform hardness distributions

Athukorala, Asitha C.; De Pellegrin, Dennis V.; Kourousis, Kyriakos I. (Elsevier, 2017)

The non-uniform hardness distribution, metallurgy and ratchetting behaviour of head-hardened Australian rail steel (AS60 HH) are studied. In a bid to extrapolate material properties across the rail head continuum, a unified ...
Wear particle analysis and the evolution of the plastically deformed layer on Australian rail steel

Athukorala, Asitha C.; De Pellegrin, Dennis V.; Battaglia, Ben T.; Kourousis, Kyriakos I. (Trans Tech Publications, 2016)

Particle analysis methodology is presented, together with the morphology of the wear debris formed during rolling contact fatigue. Wear particles are characterised by their surface topography and in terms of wear mechanism. ...

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