Aerospace Engineering (AE)
Recent Submissions
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Quasi-static nonlinear finite element analysis for predicting damage in plain/stiffened laminated composite plates/shell panels subjected to low-velocity impact
Laminated composites are susceptible to damage when subjected to lateral impact loading due to their very poor transverse properties. The damage caused due to low?velocity impact, such as tool drop and runway debris hit, ... -
Elasto-plastic contact stress and fracture analysis of lug joints under cyclic loading
Mechanical joints are most commonly used to connect various components of large?scale structures. They have to perform the function of proper load transfer between components, and their structural integrity is of crucial ... -
Evaluation of impact induced damage and its growth under fatigue in woven fabric carbon-epoxy laminates : An Approach
Advanced composite materials, owing to their high specific strength and modulus, have found their way into several engineering applications, particularly in aircraft structural components. Further, other attractive properties ... -
Finite element analysis of laminated anisotropic shells with lainated anisotropic stiffness
Thesis: Finite Element Analysis of Laminated Anisotropic Shells with Stiffeners Introduction Laminated anisotropic stiffened shells are widely used in many engineering fields. This is due to the fact that fibre-reinforced ... -
Study of nondestructive evaluation of mechanical stresses
Thesis: Magnetomechanical Acoustic Emission (MAE) Studies for Residual Stress Evaluation in Structural Steels Introduction Quantitative measurement of residual stresses is an important aspect of structural integrity ... -
A comarative study of upwind schemes for the euler equations on unstructured grids
Unstructured meshes offer a great deal of flexibility in the treatment of complex configurations which is difficult to match with a structured grid approach. The unstructured grid generation technique used in this study ... -
Dynamo action due to turbulence in a linear shear flow
Astrophysical systems such as the Sun, disc galaxies, galaxy clusters, and accretion discs possess ordered magnetic fields alongside random components. These magnetic fields survive for timescales much longer than diffusion ... -
GMRES acceleration of kinetic flux vector split (KFVS) Eulercodes
The present work is concerned with the acceleration of Euler codes using the Generalized Minimal Residual (GMRES) algorithm. The codes taken up for acceleration are 2D cellcentred, timemarching, finitevolume explicit Euler ... -
General procedure for evaluation of crack closure integral in problems of fracture mechanics
Fracturebased design procedures ensuring safety in the presence of cracks, which cannot be detected with hundred percent reliability by NonDestructive Testing (NDT) methods, have become essential for aerospace and many ... -
Study of some three dimensional effects in bolted joints
Joints are essential to connect parts of structural components and to interconnect subassemblies of largescale structural systems. Various types of structural joints are used in technological practice; among these, bolted ... -
Numerical simulation of a plane "Canonical" mixing layer using a vortex sheet model
A novel method for computing mixinglayer flow in the limit of infinite Reynolds number using a twodimensional vortexsheet technique is presented here. The method computes the evolution of the sheet by dividing it into ... -
Energy balance growth
The problem of predicting residual strength of sheet metal construction is of considerable importance in damage-tolerant or fail-safe design of aircraft. The phenomenon of stable crack growth prior to fracture instability ... -
Boundary restaint effects and correction ruler for two-dimensional separated flow past bodies.
It is now recognized that considerable uncertainties and inadequacies exist in methods for effecting blockage or boundaryrestraint corrections in wind and water tunnels. These factors have led to the search for alternative ... -
Study of mean velocity profiles in three-dimensional incompressible turbulent boundary layers
This thesis is concerned with the description of mean velocity profiles in three-dimensional incompressible turbulent boundary layers. The principal features of the study are an examination of the Preston tube technique ... -
Special Finite elements for analysis of pain jionts in composite plates
Joints are essential to connect various components of a structural assembly. Among various methods of joining, pin (or fastener) joints are of detachable type and are the most preferred under situations requiring periodic ... -
Investigation of cutting mechanisms and strain fields during orthogonal cutting in CFRPs
Cutting mechanisms in fiber reinforced plastics (FRPs) have been studied in the present work. Full field strains are measured using the digital image correlation (DIC) technique, and force signals are measured using a ... -
Finite element analysis of stress concentrations and singularities
Stress concentrations or singularities occur in a structure whenever there is a sharp change in geometry, or discontinuities in loading or material properties. In the analysis of problems with significant concentrations, ... -
Study of large scale unstable air sea interactions in the tropics using a coupled ocean atmosphere model
Coupling between the ocean and the atmosphere plays an important role in determining the nature of short-term climate fluctuations in the tropics, such as the El Niño–Southern Oscillation (ENSO). Although the tropical ocean ... -
Role of ozone in sun weather relationships
This thesis comprises analytical studies of the relationships between solar/geomagnetic activity and the day-to-day variation of total atmospheric ozone at five selected stations — Resolute, Churchill, Hohenpeissenberg, ... -
Sensitivity studies on the structure of the monsoon desert heat flow.
The sensitivity of the atmospheric response to large-scale summer continental sensible heat sources, such as those prevailing over the great deserts of the Afro-Asian landmass, is studied in this thesis. Understanding this ...
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