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MTech(Res) : Elastic Wave Dispersion Analysis and Mode Shape Investigation of Higher-order Beam Theory for Thick Beams

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The dynamic behavior of structural components over broad frequency ranges, particularly thick beams under different constraints, is important in many engineering applications where reduced dimensional modeling is required for design. Applications are aerospace structures, mechanical systems and civil infrastructure. The rigid cross-section assumption in Euler-Bernoulli and even third-order beam theories cannot accurately capture the effects […]

Ph.D.(Engg) : Effect of Laser Shock Peening on Residual Stress and Mechanical behaviour of Aluminium alloy AA2219 Friction Stir Weld

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Aluminium alloy AA2219 is a precipitation hardenable wrought alloy with copper as a major alloying element. Large-volume propellant tanks of space launch vehicles are manufactured by joining AA2219 aluminium alloy through Friction Stir Welding (FSW) and it is designed optimally to improve the payload capability.  An increase in the strength of the FSW joint results […]

Ph.D. (Engg): Numerical Studies on the effect of core metal type and thickness on the mechanical behaviour of fiber metal laminates

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Fiber Metal Laminates are materials that combine metal properties with Fiber Reinforced Plastics (FRP) to improve mechanical performance. This research investigates the impact of core metal type and thickness on the tensile and impact behavior of FMLs. Initially two types of FML were modeled: GFML based on GFRP and HFML based on CFRP and GFRP. […]

Ph.D. (Engg): Passive control and intermittent dynamics of the precessing vortex core oscillation in swirl flows

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Swirl is used in modern gas turbine combustor nozzles to achieve   reliable flame stabilization and efficient fuel-air mixing. The swirl   component in the nozzle jet flow induces an axial vortex. At high swirl   intensities, vortex breakdown occurs, creating a recirculation zone in   the flow known as the vortex breakdown bubble (VBB). VBB appearance is   typically […]

Ph.D. (Engg): Ultrasonic Guided Wave-based Inspection of Additively Manufactured Components

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Layered structural components, such as laminated composites and those made via Additive Manufacturing (AM), are widely used in aerospace and automotive industries due to their various advantages. The layer-wise approach allows for intricate and multifunctional designs, but their performance depends on factors such as joining technique, material properties, manufacturing conditions, and service environments. These layered […]

Ph.D. (Engg): Aeroacoustic sources in twin turbulent jets

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An understanding of the aeroacoustics of twin turbulent jets is essential for applications involving noise reduction in dual engine aircrafts and launch vehicles. The aeroacoustic dynamics of these jets are influenced by the spacing between the shear layer of the two jets as well as the spatio-temporal nature of the structures arising from the interaction […]

Ph.D. (Engg): On the nature of transonic buffet in a finite span wing

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Transonic buffet, or shock oscillations, is a pre-stall aerodynamic instability, caused by shock boundary layer interaction, of the flow over a wing. This aerodynamic instability occurs at critical combinations of transonic Mach number and angle of attack. Shock oscillations cause vibrations of the wing and is known as buffeting. Buffeting may cause fatigue of the […]

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