Browsing Department of Mechanical and Aerospace Engineering by Title
Now showing items 818-837 of 916
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STRUCTURAL OPTIMIZATION & RELIABILITY OF 3D PACKAGE BY STUDYING CRACK BEHAVIOR ON TSV & BEOL & IMPACT OF POWER CYCLING ON RELIABILITY FLIP CHIP PACKAGE
(2018-04-12)The 3D packaging is stacked of chips on top of another which is emerging as a powerful technology that satisfies such integrated circuit (IC) package demands. Most of the stress develops at interfaces and the interface ... -
STRUCTURAL OPTIMIZATION AND RELIABILITY ASSESSMENT OF HETEROGENEOUS 3D IC PACKAGES AND ANALYSIS OF RHEOLOGICAL PROPERTIES OF PARTICLE BASED THERMAL INTERFACE MATERIALS
(2021-04-28)As computing and communication devices are converging with improved functionally, denser, and finer pitch which creates complexity of circuit interconnections for 2-D devices becomes a limitation for overall performance ... -
Structural Optimization Using Ansys Classic And Radial Basis Function Based Response Surface Models
(Mechanical Engineering, 2009-09-16)This thesis describes a methodology to develop an effective and simple structural optimization method using Response Surfaces. It also further demonstrates how these Response Surfaces can then be utilized for further Multi ... -
Structural Optimization Using ANSYS And Regulated Multiquadric Response Surface Model
(Mechanical Engineering, 2007-08-23)The high computational expense of large non-linear and complex finite element analysis limits or often prohibits the use of conventional codes in engineering design and multidisciplinary optimization. Consequently alternate ... -
Structural Optimization Using Femlab And Smooth Support Vector Regression
(Mechanical Engineering, 2007-08-23)In recent years support vector machine (SVM) has been emerging as a popular tool for function approximation. Application of SVM for approximation of mathematical functions and complex engineering analysis has been represented ... -
Structural Optimization Using MATLAB Partial Differential Equation Toolbox And Radial Basis Function Based Response Surface Model
(Mechanical Engineering, 2008-09-17)As a decision making tool, optimization has become an inseparable part of the modern design process. However, in spite of the advances in computer capacity and speed, the computational time for some complex problems is too ... -
Study Of Blast Wave Impact On Concrete
(Aerospace Engineering, 2007-08-23)The past decade has brought an upsurge of terrorist attacks throughout the world. A common form of attack is bombings employed against a civilian structure. These bombs lead to blast waves resulting from high explosive ... -
STUDY OF CRACK PROPAGATION UNDER THERMAL LOADING ON A 3D TSV PACKAGE
(2016-09-16)Today, there is a revolution in going for miniaturization in size of electronic packages. More thinner, lighter and complex packages are in use for almost every electronic device. This initiation was taken to the next level ... -
Study of Defect Coalescence in Heterogeneous Material Systems using Broad Band Dielectric Spectroscopy.
(American Society for CompositesDEStech Publications, Inc.University of Texas at Arlington Research Institute (UTARI), University of Texas at Arlington, 2017-11)Composite materials are essential for many modern applications, including airplanes and cars, energy conversion and storage devices, medical prosthetics, and civil structures. Detecting the initiation, growth, accumulation, ... -
Study Of Hotspot Cooling For Integrated Circuits Using Electrowetting On Dielectric Digital Microfluidic System
Thermal management in electronics is an ever-growing challenge which needs constant innovations to regulate hotspots in integrated circuits for safe operation within its Thermal Design Power (TDP) envelope. As the number ... -
Study Of The Capabilities Of Electrowetting On Dielectric Digital Microfluidics (EWOD DMF) Towards The High Efficient Thin-film Evaporative Cooling Platform
(Mechanical Engineering, 2013-10-23)With the current technological advancement, the size of the electronic components is being reduced to smaller and compact sizes. In the meantime, the packaging density and power consumption is ever increasing. To tackle ... -
STUDY OF THE EFFECT OF HUMIDITY ON THERMAL CYCLING OF A BALL GRID ARRAY (BGA) PACKAGE
(2018-05-22)Thermal Cycling (TC) Test is one of the most important reliability tests in the packaging and semiconductor industry. Humidity on the other hand is one of the significant factors for the reliability of packages, since there ... -
A STUDY OF THE MECHANICAL PERFORMANCE OF A COMPOSITES EMBEDDED WITH NANO-PARTIC
(2021-06-22)**Please note that the full text is embargoed** ABSTRACT: In this research work we characterize the mechanical and curing properties of the developed composites embedded with nano-particles. A composite sample with both ... -
Study Of The Surface Roughness Evolution In Fatigued 316L Stainless Steel
(Mechanical Engineering, 2012-07-25)Fatigue is a critical design consideration in many aerospace structures. As improvements are sought in overall performance, maintenance requirements, and total service life of modern aircrafts, the demands for fatigue ... -
STUDYING EFFECTS OF ADHESIVE LAYER ON ELECTRICAL SIGNALS OF PIEZOELECTRIC TRANSDUCER BONDED WITH STRUCTURE
(2018-01-24)Piezoelectric wafer active sensors (PWAS) are the most attractive transducers for guided-wave or ultrasound based structural health monitoring (SHM) because of their light weight and compact size. In order to excite guided ... -
SUB-MODELLING APPROACH FOR COMPUTATIONALLY EFFICIENT THERMAL SIMULATIONS OF LARGE LI-ION BATTERY PACKS
(2020-07-31)Accurate and rapid prediction of temperature distribution in a large Li-ion battery pack comprising thousands of cells is critical for ensuring safety and performance of battery packs for electric vehicles (EVs). Due to ... -
SURFACE ROUGHNESS FORMATION DURING TENSILE PLASTIC DEFORMATION OF NICKEL POLYCRYSTALS
(2018-09-10)Understanding the formation of surface roughness could help better diagnose a metal component’s health and could potentially help in making better microstructure design decisions. Both of these, in turn, contribute to the ... -
Sustainable Methodology For The Use Of Fuel Cells In Data Centers
Data centers have become the lynchpin of the modern economy - from the small to medium-sized organizations, to the enterprise data centers that operates American corporations and the server farms that operate cloud-computing ... -
Synthesis and Characterization of Graphene-Reinforced Polymer Filaments for Additive Manufacturing
(2021-12-21)Fused Deposition Modeling (FDM) is a popular 3D printing process which uses a spool of thermoplastic polymer filament that is melted by the movable extruder printer head onto the bed to generate the required shape. The ... -
SYSTEM HEALTH MONITORING USING MULTIPLE-MODEL ADAPTIVE ESTIMATION TECHNIQUES
(2016-12-22)Monitoring system health for fault detection and diagnosis by tracking system parameters concurrently with state estimates is approached using a new multiple-model adaptive estimation (MMAE) method. This novel method is ...