Division of Mechanical Sciences: Recent submissions
Now showing items 561-580 of 1805
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Aeroelasticity of Flapping Wings towards Micro Air Vehicle Applications
Studies have revealed that insect like flapping flight can serve as a benchmark in designing Micro Aerial Vehicles (MAV) owing to its power efficiency and high maneuverability. Primarily envisioned as agents facilitating ... -
Investigations on Miniature Loop Heat Pipe with Flat Evaporator
The present investigation on a miniature loop heat pipe (LHP) with flat evaporator is motivated by two factors. Firstly, miniature loop heat pipes are required for thermal management of small electronics in spacecraft with ... -
Blast Effects on Mild Steel Plates and Blast Mitigation using Fluid-filled Polymer Foam
In the modern-day society, there are an increasing number of explosions, either by accidental explosions or by terrorist attacks on civilian and military infrastructure. In view of the increased threat to infrastructure ... -
Novel Phenomena Associated With Giant Tetragonality in the Ferroelectric BiFeO3-PbTiO3 System
The multiferroic perovskite solid solution xBiFeO3-(1-x)PbTiO3 (BF-PT) exhibits very unique features such as giant tetragonality (c/a ~ 1.19), coexistence of ferroelectric and magnetic order (in certain composition range) ... -
Organic-Inorganic Hybrid Photovoltaics : Interface Engineering, Fabrication and Characterization
In the past few decades the field of organic electronics particularly organics photovoltaic (OPVs) find wide interest among researchers. It finds many advantages such as light weight, low temperature fabrication requirements, ... -
Design and Development of a Novel Solar Thermal Receiver
One of the most widely used solar collectors for process heating and large scale electricity generation is the parabolic trough collector (PTC), in which a tube placed at the focus of the parabola receives concentrated ... -
Vertical Structure of Convective Clouds Using the TRMM PR Data
Very small fractional area (0.1%) occupied by the cumulonimbus (Cb) clouds belies their importance in Earths hydrological cycle and climate. For example, Riehl and Malkus (1958) estimated that the vertical transport of ... -
Multiscale Simulations in Multiphase Flows
Matter at small scales is not a continuum. Whenever we are dealing with phenomena which have disparate time and length scales, we have to rely on multiscale modelling approach in order to capture the complete physics. A ... -
Applications of Advanced CAE Methodologies to Orthopaedic Implant and Vehicle Occupant cum Pedestrian Safety Countermeasure Design
In the present work, experimental and numerical investigations into the load-displacement responses of a human lumbar Truncated Vertebral Unit (TVU) under quasi-static and impact loading conditions have been carried out ... -
An Integrative Approach to Vision Simulations using Digital Human Models
Digital Human Models (DHM), belong to a class of human-in-the-loop simulations having primary applications in the area of virtual ergonomics, virtual prototyping, and task evaluations. These models replicate physical and ... -
Testing Methodologies for Probing Site Specific Fatigue Response of Graded Coatings
Thermal barrier coating systems (TBC’s) employed in the high pressure turbine section of a modern aero-turbine engine serve as an example of constrained material systems used for engineering applications. TBC’s today are ... -
Planar Fault Energies in L12 Compounds
High temperature metallic structural materials, such as Ni-base superalloys owe their strength to a two-phase microstructure consisting of an fcc matrix strengthened by intermetallic A3B type precipitates. The performance ... -
Atomistic Simulation of Grain Boundary Effects on Cascade Damage in Vanadium
Advancements in fusion reactor technology has led to the construction of ITER and the realisation of fusion energy is closer than ever before. However, realisation of fusion energy critically depends upon breakthrough in ... -
Retrieval of Land Surface Variables using Microwave Remote Sensing
Microwave remote sensing of the land surface processes has advantages over optical remote sensing such as least attenuation due to the atmosphere, and high temporal resolution among others. Soil moisture is an important ... -
Experiments on Varying Intensity Air Blasts in Shock Tubes
Abstract In the recent past, with an increasing number of terrorist activities, blast related research has focused on conducting careful experiments to develop newer protection strategies. As field experiments using ... -
Evolution of Microstructure and Texture in Manganese Steels
Twinning Induced Plasticity (TWIP) and Transformation Induced Plasticity (TRIP) steels possess excellent combination of high strength and high ductility. Deformation twinning and strain induced martensitic phase transformation ... -
Development of Novel Heat Transfer Gauges Based on Large Carbon Clusters to Measure Total as well as Radiative Heat Flux for Planetary Entry Configurations in Hypersonic Shock Tunnels
The quest of travelling beyond earth, preludes with ground based experimental studies, detailed analysis and accurate calculations in the aspects of having a safer design of flying vehicles. As the vehicles plunge into the ... -
Efficient Simulation Strategies for Electromechanical Systems, Contact Mechanics and Time Finite Elements, within the Framework of Hybrid Finite Elements
The purpose of this thesis is to provide robust numerical schemes for various challenging nonlinear large-deformation elasticity problems. The presence of geometric and material nonlinearities poses interesting challenges ... -
Non-Local Continuum Models for Damage in Solids and Delamination of Composites
The focus of the thesis is on developing new damage models for brittle materials and using these to study delamination of composite structures. Chapter 1 gives an introductory literature review in order to motivate the ... -
Supporting Designers in Generating Novel Ideas at the Conceptual Stage Using Analogies from the Biological Domain
The aim of this research is to support designers in novel idea generation using design-by-analogy method, in particular, by using analogies from the biological domain. The motivation behind this research is to aid designers ...