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This thesis encompasses research performed in the focus area of structural health monitoring. More specifically, this research focuses on high velocity impact testing of carbon fiber reinforced structures, especially plates, and evaluating the damage post-impact. To this end, various non-destructive evaluation techniques such as ultrasonic C-scan testing and flash thermography

This thesis encompasses research performed in the focus area of structural health monitoring. More specifically, this research focuses on high velocity impact testing of carbon fiber reinforced structures, especially plates, and evaluating the damage post-impact. To this end, various non-destructive evaluation techniques such as ultrasonic C-scan testing and flash thermography were utilized for post-impact analysis. MATLAB algorithms were written and refined for the localization and quantification of damage in plates using data from sensors such as piezoelectric and fiber Bragg gratings sensors. Throughout the thesis, the general plate theory and laminate plate theory, the operations and optimization of the gas gun, and the theory used for the damage localization algorithms will be discussed. Additional quantifiable results are to come in future semesters of experimentation, but this thesis outlines the framework upon which all the research will continue to advance.
ContributorsMccrea, John Patrick (Author) / Chattopadhyay, Aditi (Thesis director) / Borkowski, Luke (Committee member) / Barrett, The Honors College (Contributor) / Mechanical and Aerospace Engineering Program (Contributor) / Department of Military Science (Contributor)
Created2015-05
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Description
The US Department of Homeland Security has routinely identified terrorism as the largest threat to the security and prosperity of the United States and as a result, the US Government has devoted significant military, monetary, and law enforcement resources to safeguarding our country against terror attacks. When most people Americans

The US Department of Homeland Security has routinely identified terrorism as the largest threat to the security and prosperity of the United States and as a result, the US Government has devoted significant military, monetary, and law enforcement resources to safeguarding our country against terror attacks. When most people Americans think about terrorism, the first thing that pops into their heads are Islamic groups such as ISIS, Al Qaeda, and the Taliban. However, right-wing domestic terrorist groups continue to operate within the United States but seem to draw little attention from both the US government and the public. This paper will use data collected by several United States government agencies as well as private research databases to investigate if radical Islamic terrorists or right-wing domestic terrorists pose a greater threat to the security of the United States and its citizens. It is hoped that the data gathered will inform the readers about various terrorist organizations and provide valuable insights into what areas require more resources and attention as well as what changes should be made to increase our ability to safeguard our country against all terrorist threats.
ContributorsBennett, Hunter (Co-author) / Baker, Jake (Co-author) / den Heyer, Garth (Thesis director) / DeMarino, Anthony (Committee member) / Department of Marketing (Contributor) / School of Criminology and Criminal Justice (Contributor) / Watts College of Public Service & Community Solut (Contributor) / Department of Military Science (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05