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Studies on the Effect of Process Aspects on Material Mixing and Defect Formation in Friction Stir Welding
(2018-05-30)
Friction Stir Welding (FSW) is a rapidly growing solid state welding process and has been a proven method for welding high strength aluminium alloys which were formerly not recommended for joining by conventional fusion ...
Modeling of the Haltere-A Natural Micro-Scale Vibratory Gyroscope
(2018-06-05)
Vibratory gyroscopes have gained immense popularity in the microsystem technology
because of their suitability to planar fabrication techniques. With considerable effort in design and fabrication, MEMS (Micro-electro-mec ...
Numerical Modelling and Software Development for Analysing Squeeze Film Fffect in MEMS
(2018-06-05)
The goal of the current study was to develop a computational framework for modelling
the coupled fluid-structure interaction problem of squeeze films often encountered in
MEMS devices. Vibratory MEMS devices such as ...
Estimation of Stress Concentration and Stress Intensity Factors by a Semi-Analytical Method
(2018-05-29)
The presence of notches or cracks causes stresses to amplify in nearby regions. This phenomenon is studied by estimating the Stress Concentration Factor (SCF) for notches, and the Stress Intensity Factor (SIF) for cracks. ...
An Experimental Study Of Instabilities In Unsteady Separation Bubbles
(Indian Institute of Science, 2007-06-11)
The present thesis is an experimental study of some aspects of unsteady two dimensional boundary layers subject to adverse pressure gradient. An adverse pressure gradient usually leads to boundary layer separation or an ...
Air-Assited Atomization Strategies For High Viscosity Fuels
(2016-02-25)
Atomization of fuel is an important pre-requisite for efficient combustion in devices such as gas turbines, liquid propellant rocket engines, internal combustion engines and incinerators. The overall objective of the present ...
Novel Compression Fracture Specimens And Analysis of Photoelastic Isotropic Points
(2017-10-11)
Compression fracture specimens are ideally suited for miniaturization down to tens of microns. Fracture testing of thermal barrier coatings, ceramics and glasses are also best accomplished under compression or indentation. ...
Generalized Circular and Elliptical Honeycomb Structures/Bundled Tubes : Effective Transverse Elastic Moduli
(2018-01-01)
Omnipresence of heterogeneity is conspicuous in all creations of nature. Heterogeneity manifests itself in many forms at different scales, both in time and space. Engineering domain being an exotic fusion of human creativity ...
Micro-Mechanisms Associated with Friction Stir Welding of Aluminum with Titanium
(2018-01-10)
Out of the known aerospace metal and alloys, Aluminium (Al) and Titanium (Ti) are important due to their unique combination of properties, such as strength, ductility and corrosion resistance etc. For these reasons, welding ...