Analysis of Metallic Structure with Ultrasonic Nondestructive Evaluation
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The Symposium provides undergraduates from all academic disciplines with an opportunity to share their research with the university community and other guests through conference-style oral presentations. The Symposium represents part of a larger effort of Iowa State University to enhance, support, and celebrate undergraduate research activity.
Though coordinated by the University Honors Program, all undergraduate students are eligible and encouraged to participate in the Symposium. Undergraduates conducting research but not yet ready to present their work are encouraged to attend the Symposium to learn about the presentation process and students not currently involved in research are encouraged to attend the Symposium to learn about the broad range of undergraduate research activities that are taking place at ISU.
The first Symposium was held in April 2007. The 39 students who presented research and their mentors collectively represented all of ISU's Colleges: Agriculture and Life Sciences, Business, Design, Engineering, Human Sciences, Liberal Arts and Sciences, Veterinary Medicine, and the Graduate College. The event has grown to regularly include more than 100 students presenting on topics that span the broad range of disciplines studied at ISU.
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From the first copper tools to modern passenger jets, metals have been the most influential material in our world since their discovery and first development over 9000 years ago. Metals both literally and figuratively support civilizations, and significant failures/defects in them can be catastrophic due to this important role. To prevent failure, engineers use imaging techniques such as Nondestructive evaluation (NDE) to find and compensate for/eliminate harmful flaws like cracks. NDE allows engineers to evaluate and test metal for defects without altering or damaging the metal being tested, and is, therefore, extremely valuable. The main purpose of this research project was to work with aluminum and brass to evaluate work hardening and heat treatment techniques when applied to various alloys of both. Students used techniques such as Fast Fourier Transforms and ultrasonic NDE to explore metallic imaging in these samples and then applied this information to other real world examples within the frontiers of the fields of aerospace and materials engineering.