My research is mainly on understanding concrete behaviour. Concrete, probably the most widely used structural material, can be studied at several scales. At the structural scale (meters) concrete can be regarded as an isotropic homogeneous material with material properties that represent the average properties of the heterogeneous medium. At the meso (mm) or micro (scales) however the properties are highly heterogeneous because the constituents of concrete such as sand, cement and aggregate are not uniform at these scales. How does this heterogeneity influence the strength of concrete structures, their modes of damage and failure, and their short term and long term (creep) response to loading? How does heterogeneity affect the “size effect” in concrete: the fact that a cylinder of diameter 0.15 m and height 0.3 m has considerably higher compressive strength than a concrete column of diameter 1.5 m and height 3.0 m, even when the composition of the concrete used is identical in both specimens? We try to use a variety of numerical and analytical tools to try to answer these questions. My research interests also include fatigue behaviour of concrete and steel, the impact response of structures and developing efficient computer programs to model multi-scale behaviour.
Quality Investigation of Material Various Govt./Industrial/Private Organization
Feasibility Study for Removal of the Existing Lock Gate and Dredging for Optimal Utilization of Haldia Port Cargo Handling Facilities Kolkata Port Trust
Running of Centre for Railway Research Ministry of Railways
Proof Checking of Structural Design for Proposed Construction of 2400 Seater Capacity Auditorium Under Dhana Dhanye Project at Alipore, Kolkata - 700 027 NBCC (INDIA) Ltd.
Bogie Design, Vehicle Dynamics & Rail - Wheel Traction Control Towards Improved Safety and Comfort and Reduction in Running Costs for Metro Coaches Bharat Earth Movers Limited (BEML)
Effect of Interfacial Gaps in FRP Strengthened Structural Components: An Experimental/Numerical Study Department of Science and Technology(DST)
Area of Research: STRUCTURAL ENGINEERING
Area of Research: Mechanics of Concrete
Ajaya Kumar Samal
Area of Research: Track Engineering
Area of Research: Concrete behaviour under Fire
Area of Research: Concrete Behaviour
Area of Research: Concrete
Area of Research: Concrete FRP Interface Study
Area of Research: FRP Concrete Composite Systems