Division of Mechanical Sciences
Recent Submissions
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Transient and steady-state response of second and higher order non-linear systems
The present investigation deals with the transient flnfl steady-state response o£ second and higher order nonlinear systems. The method of attack consists of the ultraspherical polynomial approximation and the weighted ... -
On the mismatch between predicted and measured frequencies in model testing
Mathematical models verified against ground test data are often necessary in the aerospace industry. They are used for predicting system performance in the intended as well as in any altered operating environments. They ... -
Some approximate methods of analysis of Non-Linear Dynamical systems
The present investigation concerns some approximate methods of analysis in the area of non-linear oscillations. The analysis includes the steady-state as well as the transient response of non-linear systems. In both cases, ... -
Lay Tracks : New approach to automated quadrilateral mesh generation using MAT
This thesis describes Lay Tracks, a new mesh generation algorithm to automatically generate an all quad mesh using the medial axis transform (MAT). LayTracks combines the merits of two popular direct techniques for quad ... -
Understanding failure in heterogeneous materials
The failure of heterogeneous materials is a practical problem that occurs in several diverse applications. Material heterogeneity can arise from porosity (e.g., due to some processing history), variation in continuum-scale ... -
Evaluating Sustainable Transport Measures Towards Fulfilling Sustainable Development Goals
Transportation system generates significant negative externalities such as air pollution, traffic congestion, road‑traffic accidents, and substantial greenhouse‑gas emissions, that if left unaddressed, threaten to undermine ... -
A Capillary-fed Evaporative Microthruster for Micro/Nano Satellites
Small satellites offer a unique platform for short-term and low-cost communications and surveillance missions. They are essential for, scientific research, and technology demonstration due to their ability to provide rapid ... -
Virtual Element Methods for Phase Field Fracture: Mesh Transitions, Composite Damage, and Stabilization-Free Formulations
Accurate simulation of crack propagation requires discretization methods that combine geometric flexibility with computational efficiency. Although the finite element method (FEM) and its variants remain the widely used ... -
Knowledge Management in Research and Development Projects: Mapping intellectual Assets for Innovation in Manufacturing
Innovation is the key driver of competitive advantage in a knowledge economy. In the manufacturing industry, a major portion of innovation emerges from research and development (R&D) projects. These projects require ... -
Strain Controlled Low Cycle Fatigue and Creep-fatigue interaction behaviour of A type 316(L) Stainless Steel
Type 316L(N) stainless steel (SS) is the currently favored structural material for several high temperature components in the primary side of the liquid metal cooled fast breeder reactor. The choice of this material is ... -
Development of Fully Printed Smart Tags with On-chip Power Sources
Within the last two decades, the field of printed and flexible electronics has matured to the level that complex solutions to societal needs can be envisioned. This includes applications involving multi-sensor platforms, ... -
Flood Risk Assessment in Peninsular India: Integrating Data, Multivariate Statistics, and Machine Learning
Floods are among the most significant natural hazards in India; however, their drivers, spatial coherence, and potential impacts remain poorly understood, particularly in data-scarce catchments. This thesis addresses these ... -
Learning Action Priors for Deep Visual Predictions
This thesis addresses the critical challenge of visual prediction in mobile robotics, particularly focusing on scenarios where cameras mounted on autonomous robots must navigate dynamic environments with human presence. ... -
Correlation Between Microstructure, Electrochemical Degradation and Hydrogen Permeation behaviour of Electrodeposited Cobalt Based Coatings
The application of cobalt and cobalt based coatings is limited by their electrochemical degradation in corrosive environments. In the present work, corrosion and hydrogen permeation behavior of electrodeposited Co and ... -
The Seasonal ENSO Transition Mode of the Southern Hemisphere: Definition, Characteristics and Impact
Decadal climate variability (DCV) exerts a profound influence on the global climate system by shaping background oceanic and atmospheric conditions. It drives long-term changes in sea surface temperatures (SSTs), monsoon ... -
Morse Potential Based Aggregation in Multiagent Systems with Applications to Circumnavigation and Exploration
Swarms of autonomous vehicles, which are modeled as Multi-agent systems (MASs), have found increasing applications in search and rescue, reconnaissance missions, collaborative transportation, among many other applications ... -
Decongestion Strategies for Dense Urban Airspace
With the rapid growth in the number of uncrewed aircraft systems (UAS) being deployed for on-demand delivery applications, severe congestion is anticipated in the low-altitude class-G urban airspace. Thus, there is a need ... -
Mechanics of Flat-punch Indentation of Metallic Honeycombs Using High-fidelity Continuum FE Simulations
Metallic honeycombs and foams are widely used in the automotive and aerospace industries due to their desirable mechanical properties such as light-weight, high and tailorable specific stiffness, high specific strength, ... -
Evaluation of Air Blast Swirl Injector: Flow-Field Hybrid RANS-LES Studies And Coupling With RANS Spray Characterization Colligating Global Combustor Characteristics-A Novel Exploration
The injector plays a critical role in combustion efficiency, flame stability, ignition, and combustor exit profile. The protocol of designing future engines meeting the requirements of lower emissions, noise, and the use ... -
Dynamics of Single Shallow Arches and Statics of Connected Shallow Arches and their Applications
The methods developed in this thesis enable computationally efficient dynamic analysis of shallow arches. They also facilitate insightful design of arches for different applications. The first design study considers ...
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