Browsing by Author "Jackson, Robert L."

Now showing items 1-11 of 11

Analytical and experimental analysis of the permanent deformation after collisions

Ghaednia, Hamid (2017-08-03)

This work studied the normal and oblique impact of elastic-plastic metals. The focus of this work was to investigate the relations between the permanent deformations after the collisions and the motion of the impacting ...

Experimental analysis of the wear of rubber against harder materials in reciprocating motion

Zhao, Yang (2015-07-21)

This work investigated the wear performance of rubber when contacted against harder composite materials through experimental analysis. The focus of this thesis was to find the optimal type of rubber and the composite ...

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 ...

A Finite Element Study of an Elastic- Plastic Axisymmetric Sinusoidal Surface Asperity in Contact Against a Rigid Flat with Strain Hardening

Bhandari, Geetanj (2018-04-17)

With the advancement in science and the introduction of new technology, computational modelling of contact between rough surfaces has attracted a great deal of attention. Researchers have developed many rough surface contact ...

Investigating the Process-Structure-Property Relationships of Additively Manufactured 17-4 Precipitation Hardening Stainless Steel

Dastranjy Nezhadfar, Pooriya (2022-07-28)

The present work aims to investigate the process-structure-property relationships for the additively manufactured 17-4 PH stainless steel to improve its mechanical performance. To this end, a multidisciplinary (i.e., ...

Low Speed Orthogonal Hot Machining With a Virtual Quick Stop Device

Patillo, Jonathan Maxmillian Edward (2016-05-06)

Cocquilhat first documented (1851) how heat in a tool shortens the life of the tool. Research since his time has generally concluded that the tool gives up a relatively higher percentage of its “cold hardness and toughness” ...

Molecular Dynamics Simulations of Dry Sliding Asperities to Study Friction and Frictional Energy Dissipation

Vadgama, Bhavin N. (2014-03-31)

Fundamental friction characteristics such as the friction coefficient, wear, adhesion, and dissipation of energy require an accurate understanding of how the surfaces in contact interact on nano or atomic scale. At nano ...

Study of Friction and Wear Behavior Based on Different Lubricants and Materials

K C, Sanjeev (2021-12-02)

Tribology is the study of friction, wear, and lubrication between the contacting bodies and requires a deeper understanding of multiple disciplines. This study was mainly focused on two main areas: the tribological study ...

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 Powder Feedstock-Part Performance Relationships in Additive Manufacturing

Soltani Tehrani, Arash (2022-08-01)

In this dissertation, the relationships between the powder feedstock and the mechanical performance of additively manufactured (AM) parts were investigated. In this regard, different aspects of powder feedstock were ...

Understanding The Effect of Catalytic Pyrolysis Bio-oil Produced Using CaO During Hydrotreatment

K C, Sanjeev (2017-11-07)

Energy is very important for sustaining human life, and mankind is dependent on fossil fuels for energy need. Since fossil fuels reserves are limited and are depleting in a rapid rate, there is a surge for alternative fuel ...