Browsing Auburn Theses and Dissertations by Author "Tippur, Hareesh V."

Now showing items 1-8 of 8

Aging Induced Evolution of the Fatigue Behavior and Microstructure of Sn-Ag-Cu Lead Free Solders

Fu, Nianjun (2017-07-31)

Solder joints in electronic assemblies are often subjected to cyclic (positive/negative) mechanical strains and stresses. Such exposures can occur in variable temperature application environments or during accelerated ...

Effects of Aging on the Cyclic Stress Strain and Fatigue Behaviors of Lead-free Solders

Mustafa, Muhannad (2014-08-18)

The microstructure, mechanical response, and failure behavior of lead free solder joints in electronic assemblies are constantly evolving when exposed to isothermal aging and/or thermal cycling environments. While the ...

Finite Element Analysis of Three-Dimensional Elasto-Plastic Sinusoidal Contact and Inclusion in a Multi-Scale Rough Surface Contact Model

Krithivasan, Vijaykumar (2008-05-15)

Researchers have developed many models to simulate the elasto-plastic contact of spheres. However, there does not appear to exist a closed-form analytical model for elasto-plastic three dimensional sinusoidal contact. This ...

MICRO AND MESO SCALE ANALYSIS OF LEAD-FREE SOLDER JOINTS

Mondal, Debabrata (2024-04-30) ETD File Embargoed

With the growth of electronic packaging industries, ranging from automobiles to hand-held products, reliability is a major concern. Also, to keep pace with the increasing demand of end users for integration, miniaturization, ...

Modeling, Validation and Analysis of Degradation Processes of Lithium Ion Polymer Batteries

Fu, Rujian (2014-07-29)

The lithium ion polymer battery (LiPB) has become one of the most widely used energy storage devices because of its high energy and power densities. However, its performance and life span are limited by the degradation ...

Synthesis of Multi-dimensional Organic Nano-conductors for the Enhancement of Thermal, Electrical, and Mechanical Properties of Composites

Smith, James, II (2014-03-31)

For years, composite materials have attracted significant attention toward the improvement of their mechanical, electrical, and thermal properties. In more recent studies, carbon based fillers, such as carbon fibers, have ...

Three-Dimensional Modeling of Elasto-Plastic Sinusoidal Contact under Time Dependent Deformation Including Both Stress Relaxation and Creep Analysis

Rostami, Amir (2013-07-11)

Computational modeling of contact between rough surfaces has attracted a great deal of attention due to the developing technological needs of industry. Most of the early models of rough surface contacts assumed a cylindrical ...

Understanding and Modeling the Effects of Surface Texture on Fatigue Behavior of Additively Manufactured Parts

Lee, Seungjong (2024-04-29) ETD File Embargoed

Additive manufacturing, considered as a future manufacturing technique, provides an unique advantage of fabricating near-net-shape parts without any additional processes. While there are extensive efforts to improve ...