Matching Items (2)
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- All Subjects: MATLAB
- Creators: Civil, Environmental and Sustainable Eng Program
Description
In order to aid student learning of difficult subject matter in the Mechanics Project (CEE 210, CEE 212, and CEE 213), supplementary materials were created. The aim of these supplementary materials was to bridge the gap between nuanced concepts and address muddiest points around computing projects. The following problem areas were identified and addressed over the course of the thesis: boundary and continuity conditions, MATLAB programming, load resultant methods, report writing, and stress and strain. These areas of difficulty were identified by observing student success in the classroom setting and in office hours. The submitted material related to boundary and continuity conditions offers students with a reference to definitions of each condition, examples involving each condition, and an explanation as to the importance of segmenting a beam in reference to these conditions. The MATLAB coding and debugging material gives students do’s and don’ts, general tips, and informative flow charts to follow when debugging. These were created to improve students’ ability to code and to debug their programs. The load resultant method material provides an example illustrating the difference between the integral and resultant method. Additionally, this material provides common formulas utilized by the resultant method. The report writing document lists do’s and don’ts when writing a computing project. The document also illustrates the nuance behind each section of the report via examples and gives students practical suggestions to aid in their success in completing these reports. The final submitted material regarding stress and strain addresses the conceptual definitions, the uses of, and the special cases of stress and strain. The document also provides reference to current course materials that discuss stress and strain.
ContributorsBjelland, Aidan Drew (Author) / Hjelmsad, Keith (Thesis director) / Chatziefstratiou, Efthalia (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-12
Description
This thesis is part of a larger research project, conducted by Elizabeth Stallings Young, which aims to improve understanding about the factors controlling the process of MIDP and the interaction between the biochemical reactions and the hydrological properties of soils treated with MIDP. Microbially Induced Desaturation and Precipitation (MIDP) is a bio-geotechnical process by which biogenic gas production and calcite mineral bio-cementation are induced in the pore space between the soil particles, which can mitigate earthquake induced liquefaction (Kavazanjian et al. 2015). In this process substrates are injected which stimulate indigenous nitrate reducing bacteria to produce nitrogen and carbon dioxide gas, while precipitating calcium carbonate minerals. The biogenic gas production has been shown to dampen pore pressure build up under dynamic loading conditions and significantly increase liquefaction resistance (Okamura and Soga 2006), while the precipitation of calcium carbonate minerals cements adjacent granular particles together. The objective of this thesis was to analyze the recorded pore pressure development as a result of biogenic gas formation and migration, over the entire two-dimensional flow field, by generating dynamic pressure contour plots, using MATLAB and ImageJ software. The experiment was run in a mesoscale tank that was approximately 114 cm tall, 114 cm wide and 5.25 cm thick. Substrate was flushed through the soil body and the denitrifying reaction occurred, producing gas and correspondingly, pressure. The pressure across the tank was recorded with pore pressure sensors and was loaded into a datalogger. This time sensitive data file was loaded into a MATLAB script, MIDPCountourGen.m, to create pressure contours for the tank. The results from this thesis include the creation of MIDPContourGen.m and a corresponding How-To Guide and pore pressure contours for the F60 tank. This thesis concluded that the MIDP reaction takes a relatively short amount of time and that the residual pressure in the tank after the water flush on day 17 offers a proof of effect of the MIDP reaction.
ContributorsCoppinger, Kristina Marie (Author) / van Paassen, Leon (Thesis director) / Kavazanjian, Edward (Committee member) / Stallings-Young, Elizabeth (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor) / School of Sustainability (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05