Division of Mechanical Sciences: Recent submissions
Now showing items 1041-1060 of 2275
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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 ... -
Characterization of Cure Residual Strain in CFRPs
Fiber reinforced plastic (FRP) structures are widely used compared to metallic structures due to their superior mechanical properties and lightweight. However, anisotropy and heterogeneity inherent to FRPs cause a multitude ... -
Novel Manufacturing Technique of Metal Foams by Mechanical Processing of Hollow Spheres
Aluminium foams have high specific strength and higher stiffness than other contemporary packaging materials. They have important application as packaging material for critical applications that needs highest safety ... -
Evaporation of Water from Soil-like, Leaf-like Surfaces and Unconventional Porous Media
Evaporation is one of the inherent processes of our planet earth as an ecosystem. Water bodies, earth’s surface and vegetation all contribute significantly towards the total evaporation which eventually leads to the formation ... -
Studies on Characteristics of Cement Stabilised Rammed Earth and Flexural Behaviour of Plain and Reinforced Rammed Earth
The rammed earth technique has been explored in the past, for the construction of load bearing walls in the buildings. Rammed earth construction involves compaction of partially saturated loose soil-sand mix in a rigid ... -
Two Problems on the Parametric Resonances and Bifurcations in Rotating Beams
The current research work addresses two interesting systems related to rotating beams. The first dynamical system under consideration is an articulated uniform beam rotating in vacuum under vertical hub excitation along ... -
Evaporation Driven Oscillations and Particle Agglomeration in Pure and Complex Fluid Sessile Droplets
A sessile droplet forms a fundamental building block in analyzing particle distribution and deposition in both industrial applications and lab on a chip research such as inkjet printing, surface patterning, photonic crystals, ... -
Studies on Friction Stir Welding of Aluminium AA2024 Alloy to Pure Copper
Aluminium-copper joints are widely used in electrical applications due to their unique properties. However, joining of these metals by conventional welding techniques is restricted due to the formation of brittle (bulk ... -
Experimental and numerical studies on Mode-I ductile fracture behaviour of Magnesium
In recent years, weight reduction of automobiles is being achieved by using light weight metals like magnesium (Mg) in the form of cast or wrought products. However, the structural application of Mg and its alloys is limited ... -
Liquid bridge breakup and detachment dynamics investigated using dynamic domain multiphase flow simulations
Liquid bridges, formed between two solid surfaces in close proximity are encountered in a variety of engineering and daily life applications. The dynamics of a liquid bridge including its evolution that typically involves ... -
Estimation and Control of Friction in Bulk Plastic Deformation Process
Friction plays a significant role in bulk plastic deformation processes in controlling the tool life, formability of the work piece material and the quality of the finished product such as, surface finish, microstructure ...