Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Publication
- Publication Type
Articles 1 - 11 of 11
Full-Text Articles in Engineering
Phase I Evaluation Of Selected Concrete Material Models In Ls-Dyna, Bradley J. Winkelbauer
Phase I Evaluation Of Selected Concrete Material Models In Ls-Dyna, Bradley J. Winkelbauer
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Numerous roadside safety systems are configured with reinforced concrete materials, such as bridge railings, median barriers, and roadside parapets. These protective barrier systems are intended to safely contain and redirect errant vehicles as well as prevent impacts into hazardous fixed objects or other geometric features. The analysis and design of these structures may involve impact simulation with finite element software, like LS-DYNA, which includes multiple concrete material models. For such investigations, limited guidance is available for selecting preferred concrete material models and determining appropriate values for specific parameters. This Phase I study investigated the viability and performance of existing concrete …
The Economic Implications Of Evolving Aviation Funding Policy In Tennessee, Hunter Pressley Mccracken
The Economic Implications Of Evolving Aviation Funding Policy In Tennessee, Hunter Pressley Mccracken
Masters Theses
The majority of state funding for capital improvements at Tennessee’s general aviation and commercial airports comes through grants awarded from the Tennessee Transportation Equity Trust Fund (TETF). Through a 4.5 percent sales and use tax on the consumption of aviation fuel, users help to fund the continued improvement and maintenance of aviation facilities around the state. Aircraft refueling operations associated with the FedEx “SuperHub” in Memphis were responsible for two-thirds of the TETF’s revenue for Fiscal Year 2014. In response to speculation that FedEx would relocate its refueling operations to reduce its fuel tax liability, the Tennessee General Assembly passed …
Electric-Elastic Field Induced By A Straight Dislocation In One-Dimensional Quasicrystals, L. Z. Yang, Y. Gao, Ernian Pan, Natalie P. Waksmansk
Electric-Elastic Field Induced By A Straight Dislocation In One-Dimensional Quasicrystals, L. Z. Yang, Y. Gao, Ernian Pan, Natalie P. Waksmansk
Ernian Pan
By using the generalized Stroh formalism, the electric-elastic field induced by a straight dislocation parallel to a periodic axis of a one-dimensional quasicrystal is obtained. The derivation is concise and the solution is in an exact closed form. As an illustration, the electric-elastic fields around a straight dislocation in a one-dimensional hexagonal quasicrystal are studied. Besides the interesting numerical results presented, the generalized Stroh formalism can be applied to more complicated dislocation problems in quasicrystals
Learning From Cinara: Exploring The Depths Of Participatory Water Engagement In Cali, Colombia, Zachary T. Strickland
Learning From Cinara: Exploring The Depths Of Participatory Water Engagement In Cali, Colombia, Zachary T. Strickland
Honors College Theses
Located within the Universidad del Valle in Cali, Colombia, CINARA is an academic institution, comprised of both engineers and social scientists, that has almost three decades of experience regarding participatory approaches to water supply and environmental sanitation. In this paper, I argue that CINARA’s work is important due to its emphasis on meaningful community participation that significantly involves communities in decisions on technical matters that are usually allocated exclusively to “experts.” Furthermore, the valuation of social considerations and non-technical knowledge found amongst CINARA’s engineers stands in distinct contrast to traditional development practices and engineering mindsets. This paper will go on …
Environmental Systems Engineering - Swarthmore College, Swarthmore, Arthur Mcgarity
Environmental Systems Engineering - Swarthmore College, Swarthmore, Arthur Mcgarity
All ECSTATIC Materials
Course in environmental systems engineering offered at Swarthmore College, Swarthmore in Spring 2015.