ASU Electronic Theses and Dissertations
This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.
In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.
Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.
- Jiang, Hanqing
- Peralta, Pedro
- 6 Arizona State University
- 2 Mignolet, Marc
- 2 Oswald, Jay
- 2 Sieradzki, Karl
- 2 Solanki, Kiran
- more
- 1 Bhatia, Mehul Anoopkumar
- 1 Brown, Andrew David
- 1 Chawla, Nikhilesh
- 1 Dai, Lenore
- 1 Jiao, Yang
- 1 Krishnan, Kapil
- 1 Lim, Harn Chyi
- 1 Liu, Minghao
- 1 Muhich, Christopher
- 1 Neithalath, Narayanan
- 1 Rajagopalan, Jagannathan
- 1 Rajan, Subramaniam
- 1 Solanki, Kiran N
- 1 Zhang, Jiaping
- 6 Public
- Mechanical engineering
- 3 Materials Science
- 1 Constitutive Behavior
- 1 Crystal Plasticity
- 1 Dislocation
- 1 EBSD
- 1 Finite Element Analysis
- more
- 1 Generalized Stacking Fault
- 1 Grain Boudary
- 1 Grain Boundary Misorientation
- 1 Mechanics
- 1 Microstructure
- 1 Molecular chemistry
- 1 Multi-scale
- 1 Nuclear engineering
- 1 Physics
- 1 Shock Loading
- 1 Solute
- 1 Spall Damage
- 1 Taylor Factor
- 1 Titanium
- 1 X-Ray Tomography
- 1 coarse-graining approach
- 1 copolymer
- 1 fission product transport
- 1 grain boundary diffusion
- 1 iterative Boltzmann inversion
- 1 microphase separation
- 1 microstructure
- 1 molecular dynamics
- 1 multiphysics simulation
- 1 polyurea
- Language in Trauma: A Pilot Study of Pause Frequency as a Predictor of Cognitive Change Due to Post Traumatic Stress Disorder
- Subvert City: The Interventions of an Anarchist in Occupy Phoenix, 2011-2012
- Exploring the Impact of Augmented Reality on Collaborative Decision-Making in Small Teams
- Towards a National Cinema: An Analysis of Caliwood Films by Luis Ospina and Carlos Mayolo and Their Fundamental Contribution to Colombian Film
- 国家集中采购试点政策对制药企业和制药产业的影响评估
Polyurea is a highly versatile material used in coatings and armor systems to protect against extreme conditions such as ballistic impact, cavitation erosion, and blast loading. However, the relationships between microstructurally-dependent deformation mechanisms and the mechanical properties of polyurea are not yet fully understood, especially under extreme conditions. In this work, multi-scale coarse-grained models are developed to probe molecular dynamics across the wide range of time and length scales that these fundamental deformation mechanisms operate. In the first of these models, a high-resolution coarse-grained model of polyurea is developed, where similar to united-atom models, hydrogen atoms are modeled implicitly. This …
- Contributors
- Liu, Minghao, Oswald, Jay, Muhich, Christopher, et al.
- Created Date
- 2020
Shock loading is a complex phenomenon that can lead to failure mechanisms such as strain localization, void nucleation and growth, and eventually spall fracture. The length scale of damage with respect to that of the surrounding microstructure has proven to be a key aspect in determining sites of failure initiation. Studying incipient stages of spall damage is of paramount importance to accurately determine initiation sites in the material microstructure where damage will nucleate and grow and to formulate continuum models that account for the variability of the damage process due to microstructural heterogeneity, which is the focus of this research. …
- Contributors
- Brown, Andrew David, Peralta, Pedro, Peralta, Pedro, et al.
- Created Date
- 2015
Fission products in nuclear fuel pellets can affect fuel performance as they change the fuel chemistry and structure. The behavior of the fission products and their release mechanisms are important to the operation of a power reactor. Research has shown that fission product release can occur through grain boundary (GB) at low burnups. Early fission gas release models, which assumed spherical grains with no effect of GB diffusion, did not capture the early stage of the release behavior well. In order to understand the phenomenon at low burnup and how it leads to the later release mechanism, a microstructurally explicit …
- Contributors
- Lim, Harn Chyi, Peralta, Pedro, Jiang, Hanqing, et al.
- Created Date
- 2014
Commercially pure (CP) and extra low interstitial (ELI) grade Ti-alloys present excellent corrosion resistance, lightweight, and formability making them attractive materials for expanded use in transportation and medical applications. However, the strength and toughness of CP titanium are affected by relatively small variations in their impurity/solute content (IC), e.g., O, Al, and V. This increase in strength is due to the fact that the solute either increases the critical stress required for the prismatic slip systems ({10-10}<1-210>) or activates another slip system ((0001)<11-20>, {10-11}<11-20>). In particular, solute additions such as O can effectively strengthen the alloy but with an attendant …
- Contributors
- Bhatia, Mehul Anoopkumar, Solanki, Kiran N, Peralta, Pedro, et al.
- Created Date
- 2014
Shock loading is a complex phenomenon that can lead to failure mechanisms such as strain localization, void nucleation and growth, and eventually spall fracture. Studying incipient stages of spall damage is of paramount importance to accurately determine initiation sites in the material microstructure where damage will nucleate and grow and to formulate continuum models that account for the variability of the damage process due to microstructural heterogeneity. The length scale of damage with respect to that of the surrounding microstructure has proven to be a key aspect in determining sites of failure initiation. Correlations have been found between the damage …
- Contributors
- Krishnan, Kapil, Peralta, Pedro, Mignolet, Marc, et al.
- Created Date
- 2013
Gels are three-dimensional polymer networks with entrapped solvent (water etc.). They bear amazing features such as stimuli-responsive (temperature, PH, electric field etc.), high water content and biocompatibility and thus find a lot of applications. To understand the complex physics behind gel's swelling phenomenon, it is important to build up fundamental mechanical model and extend to complicated cases. In this dissertation, a coupled large deformation and diffusion model regarding gel's swelling behavior is presented. In this model, free-energy of the total gel is constituted by polymer stretching energy and polymer-solvent mixing energy. In-house nonlinear finite element code is implemented with fast …
- Contributors
- Zhang, Jiaping, Jiang, Hanqing, Peralta, Pedro, et al.
- Created Date
- 2012