Manicka Dhanasekar
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View article: A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites
A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites Open
Widely reported damage modelling methods inherently use elastic brittle rapidly decaying responses for materials under both uniaxial tension and compression, in spite of the existence of ample experimental evidences that the damaging proce…
View article: Numerical modelling of concrete bearing strength for different heights of concrete blocks
Numerical modelling of concrete bearing strength for different heights of concrete blocks Open
Bearing strength of concrete is one of important design characteristics in transmit the bearing force in structural supports such as column corbel, bridge bearing system, concrete connection, anchorage in post-tension members and other typ…
View article: Bearing strength of concrete for difference heights of concrete blocks
Bearing strength of concrete for difference heights of concrete blocks Open
Bearing strength of concrete is important design criteria to transmit load safely to concrete supports especially in column-foundation, corbel, bridge pedestal, support anchorage, post-tension member and other types of structure supports. …
View article: Effect of concrete block height variation to the shear bond strength of thin layer mortared masonry
Effect of concrete block height variation to the shear bond strength of thin layer mortared masonry Open
Thin layered masonry employs thin mortar joints laid with minimally skilled masons. However, the applicability of this masonry system relies on units made with tighter control of their height. The standard unit height variation is tolerate…
View article: Effect of concrete block height variation to the shear bond strength of thin layer mortared masonry
Effect of concrete block height variation to the shear bond strength of thin layer mortared masonry Open
Thin layered masonry employs thin mortar joints laid with minimally skilled masons. However, the applicability of this masonry system relies on units made with tighter control of their height. The ...
View article: Effects of principal stress axis rotation on cyclic deformation characteristics of rail track subgrade materials
Effects of principal stress axis rotation on cyclic deformation characteristics of rail track subgrade materials Open
Cumulative plastic deformation of rail track subgrade materials under moving wheel load is a complex problem. The plastic deformation and resilient modulus of subgrade material subjected to moving wheel load are a function of Principal Str…
View article: Effects of principal stress axis rotation on cyclic deformation characteristics of rail track subgrade materials
Effects of principal stress axis rotation on cyclic deformation characteristics of rail track subgrade materials Open
The cumulative plastic deformation of rail track subgrade materials under moving wheel loads is a complex problem. The plastic deformation and resilient modulus of subgrade materials subjected to moving wheel loads are a function of Princi…
View article: A generalised damage model for masonry under compression
A generalised damage model for masonry under compression Open
A generalised model based on damage mechanics for predicting the response of masonry subjected to compression is presented. The model accounts for the behaviour of the constituents of the masonry, viz., the units, the mortar and the unit–m…
View article: Behaviour of thin layer mortared concrete masonry under combined shear and compression
Behaviour of thin layer mortared concrete masonry under combined shear and compression Open
This paper presents experimental studies on the behaviour of a thin layer polymer mortared concrete masonry under combined shear–compression. Thirty thin layer mortared concrete masonry panels with five bed joint orientations were construc…
View article: Steel-concrete-steel composite columns subjected to lateral impact
Steel-concrete-steel composite columns subjected to lateral impact Open
Concrete-filled double skin tube (CFDST) is a creative innovation of steel-concrete-steel composite construction, formed by two concentric steel tubes separated by a concrete filler. Over the recent years, this column form has been widely …
View article: Effects of Principal Stress Axis Rotation on Unsaturated Rail Track Foundation Deterioration
Effects of Principal Stress Axis Rotation on Unsaturated Rail Track Foundation Deterioration Open
Precise assessment of cyclic plastic deformation of rail track subgrade is essential in designing cost effective rail tracks. Plastic deformation of rail tracks is often underestimated due to the omission of effects of principal stress axi…
View article: Cyclic plastic deformation characteristics of subgrade under moving train wheel load
Cyclic plastic deformation characteristics of subgrade under moving train wheel load Open
Cyclic plastic deformation of subgrade and other engineered layers is generally not taken into account in the design of railway bridge transition zones, although the plastic deformation is the governing factor of frequent track deteriorati…
View article: Effects of particle size distribution in the response of model granular materials in multi-ring shear
Effects of particle size distribution in the response of model granular materials in multi-ring shear Open
Rail track undergoes complex loading patterns under moving traffic conditions compared to roads due to its continued and discontinued multi-layered structure, including rail, sleepers, ballast layer, sub-ballast layer, and subgrade. Partic…
View article: Effectiveness of Two Forms of Grouted Reinforced Confinement Methods to Hollow Concrete Masonry Panels
Effectiveness of Two Forms of Grouted Reinforced Confinement Methods to Hollow Concrete Masonry Panels Open
This paper presents a study on the effectiveness of two forms of reinforced grout confining systems for hollow concrete block masonry. The systems considered are: (1) a layer of grout directly confining the unreinforced masonry, and; (2) a…
View article: Development of a new design expression for the in-plane shear capacity of the partially grouted concrete masonry walls
Development of a new design expression for the in-plane shear capacity of the partially grouted concrete masonry walls Open
Partially grouted masonry walls subjected to in-plane shear exhibit a complex behaviour because of the influence of the aspect ratio, the pre-compression, the grouting pattern, the ratios of the horizontal and the vertical reinforcements, …
View article: Experimental study on behaviour of concrete filled double skin tube columns under lateral impact loading
Experimental study on behaviour of concrete filled double skin tube columns under lateral impact loading Open
This paper presents an experimental investigation on the lateral impact response of axially loaded concrete filled double skin tube (CFDST) columns. A total of four test series are being conducted at Queensland University of Technology usi…
View article: Research outcomes for improved management of insulated rail joints
Research outcomes for improved management of insulated rail joints Open
Insulated Rail Joints (IRJs) are safety critical component of the automatic block signalling and broken rail detection systems. IRJs exhibit several failure modes due to complex interaction between the railhead ends and the wheel tread nea…
View article: Minimising the failure of rail joints through managing the localised condition of track
Minimising the failure of rail joints through managing the localised condition of track Open
To effectively address the high rate of failure of Insulated Rail Joints (IRJs) in the heavy haul lines, a research plan was designed and implemented with particular attention to understand their mechanical behaviour and deterioration proc…