Division of Mechanical Sciences: Recent submissions
Now showing items 741-760 of 1954
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Non-classical mechanics and thermodynamics for continuum modelling of solids
This thesis dwells upon several aspects of continuum mechanics and thermodynamics to model elastic and inelastic response of solids. Broadly, the work presented may be categorized into two parts{ one focusing on the ... -
Strain-rate Dependence of Rock Joint Strength and Related Stability of Slopes and Tunnels
Understanding the strain rate-dependent strength behavior of rock joints is important since displacement rates along rock joints in field can exceed the suggested displacement rates (0.02 mm/min-0.5 mm/min) for laboratory ... -
Semi-active Control of Earthquake Induced Vibrations in Building Structures using MR Dampers: Algorithm Development and Benchmark Application
The thrust of this thesis is the development of two different kinds of feed-forward control strategy using the semi-active device MR damper to monitor MR damper supply current/voltage. The study develops a feed-forward ... -
Constrained Optimal Guidance Design of Interceptors for High-Speed Ballistic Targets
In this thesis, optimal control theory has been applied to design constrained terminal guidance algorithms for interceptor to destroy incoming high speed ballistic targets. There exist several optimal guidance algorithms ... -
Flame Particle Tracking Analysis of Turbulence-Premixed Flame Interaction
This work describes the computational and theoretical developments made in the understanding of turbulence-premixed flame interaction, using both lean and rich H2-air mixtures, in a flow field of near-isotropic turbulence. ... -
Experimental Investigation on Hypersonic Flowfield Around Spiked Axisymmetric Bodies
Shock-shock interactions appearing around hypersonic vehicles are generally complex and often lead to high values of localized pressures and temperatures. This increase in temperature is associated with exceedingly high ... -
Experimental Studies on Co-current downdraft Biomass Gasifier
The main theme of the work carried out and reported in this thesis is to understand the processes involved in a co-current downdraft biomass gasification reactor and to analyse the data obtained with an attempt to provide ... -
Plasmon Phonon Coupled Dynamics of Nanocrystalline Structures
This thesis is an attempt to understand the characteristics and responses of plasmon phonon coupled dynamics in nanocrystalline structures. An energy based Lagrangian formulation is developed with fundamental field quantities ... -
Integrated Relative Position and Attitude Control of Distributed Spacecraft Formation For High Resolution Imaging
One of the major challenges in space technology is to achieve high resolution imaging of the intended area on demand to meet civilian and military applications. Spacecraft formation flying with coordinated control of smaller ... -
Structure and Dynamics of Fluids Under Nanoscale Confinement
Fluid molecules confined between solid surfaces separated by a few nanometers are of considerable interest in nanoscience and nanotechnology as they undergo structural and dynamical transitions absent in their corresponding ... -
Modelling and Experimental Studies on Dynamic Behaviour of Electrochemical Double Layer Capacitors
lectrochemical double layer capacitors (EDLCs) can store and deliver electrical energy at high power density with long cycle life, and can absorb peak charge/discharge loads. EDLCs can be used with batteries to insulate ... -
Formulation of A Framework for Needs Analysis and Stakeholders' Behavioral Simulation for Design for the BOP
Poverty, and associated undesirability, distinguishes a population as Base of the (economic) Pyramid (BoP). Lack of necessities and vulnerability negatively affect the well-being of BoP populations. Literature reveals ... -
Characteristics of Convective Clouds Over the Indian Monsoon Zone from Weather Radar Data
Deep convective clouds play an important role in global energy balance through vertical transport of water vapor, momentum and energy, altering radiation and also influence hydrological cycle via precipitation. These clouds ... -
Engineering Bioactive Polymer/Ceramic Composite Nanofibrous Scaffolds for Bone Tissue Regeneration
Tissue repair and regeneration is a natural healing process seen in human body in response to injuries and infections. The regenerative capacity of most tissues decelerates with age and its associated pathological conditions. ... -
Influence of Surface Topography and Tribosystem on Reciprocating Friction in Sparsely Lubricated Contacts
Surface texturing to achieve reduced sliding friction has been a widely studied topic, as seen in contemporary literature. Laser surface texturing, grinding and ion beam milling are popular techniques accepted by researchers ... -
Nanoscale surface engineering of metallic biomaterials for enhancement of mechanical and biological responses
Metallic materials are widely used in load bearing orthopedic applications. The alloys used in the implants are 316L stainless steel (SS), commercially pure Ti (cp-Ti), Ti-6Al-4V and Co-Cr-Mo alloys. The life of implants ... -
Studies on Internal Reforming Solid Oxide Fuel Cell
Renewable energy becomes inevitable for future energy needs. Accordingly, researchers are exploring possible alternatives to conventional fuel based internal combustion engines. In recent years, Bio-fuel (methane/ethanol) ... -
Effect of Copper on Strength of Super 304H Austenitic Stainless Steel
Super 304H is a copper-containing austenitic stainless steel with potential applications in advanced thermal power plants owing to its superior corrosion, oxidation, creep resistances and cost affordability. The addition ... -
Synthesis of Thermally Stable Catalysts for Methane Reforming and CO Abatement
The global energy consumption is estimated to reach around 262×1012 kWh/year by 2050 for 9 billion people. It is a challenge to meet global energy requirement via clean fuel (hydrogen) and by reducing/utilizing the CO2 ... -
Insights into the Influence of Electric Field on the Structural Evolution and its Correlation with the Properties in the Lead-based BiScO3-PbTiO3 and the Lead-free Na0.5Bi0.5TiO3 based Piezoceramics
Advanced piezoelectric ceramics are widely used as piezoelectric sensors, transducers, actuators, etc. Among the commercially viable piezoelectric systems, lead zirconate titanate, PbZr1-XTiXO3 (PZT) has dominated the ...