Research Activities: 2012
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Novel Integrated Nondestructive Testing Methodology for Detection and Evaluation of |
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| Status | Complete View Final Report: PDF |
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| Sequential Number | R341 | ||||
| Identification Number | 00042511 | ||||
| Matching Research Agency |
Missouri University of Science & Technology |
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| Principal Investigator |
Kristen Donnell |
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| Student Involvement |
One graduate student |
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Project Objective |
This project focuses on the development of an integrated nondestructive testing and evaluation (NDT&E) methodology that combines the benefits of multiple NDT&E techniques into one new technique. In this way, unique features of multiple NDT methods can be brought together to achieve new results that one method alone cannot achieve. Further, this new method may have the potential to address issues in NDT&E that are currently without a practical solution. |
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Project Abstract |
The integration of thermography/infrared (IR) and ultrasonic test (UT) methods has been successfully demonstrated by others. By vibrating a material via UT, heat is generated at the location of flaws. Subsequently, this heat is imaged using an IR camera. The work proposed here suggests a similar yet unique approach through the integration of microwave methods with IR/thermography, an established NDT technique. The combination of microwave and IR NDT may offer a substantial improvement to traditional thermographic techniques. First, microwaves can be used to selectively and locally heat an area of interest, as opposed to heating the entire sample (and risking heat damage). Furthermore, thermography has an issue with speed, as heat transfer can be quite slow. Using microwaves to selectively heat a localized area will improve the speed of the method by 50%, as microwave heating is instantaneous. Preliminary results have shown the combination of microwave and IR methods as a promising technique for detection of surface cracks and corrosion in metals. This project will build upon these preliminary results to development a new technique to detect and evaluate the presence of corrosion in cement-based materials, which is of critical importance to the nation’s transportation infrastructure. |
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Relationship to other Research/Projects |
This is a new area of research for PI Donnell and Co-PI’s Ghasr and Kinzel. This project builds upon each researcher’s respective expertise in microwave NDT or heat transfer, proving a new avenue for interdisciplinary research. |
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Transportation-Related Keywords |
Cement-based materials, structural health monitoring, corrosion, reinforcing steel bars, microwave nondestructive testing, thermography, transportation infrastructure | ||||
Technology Transfer Activities |
At the conclusion of this project, a journal paper will be submitted to a suitable, peer-reviewed publication. A final report summarizing the findings of this research will be submitted at the completion of the project. A short article will be submitted for the CTIS newsletter if requested and a presentation will be given at the Missouri S&T Transportation Infrastructure Conference, should this project be selected for the program. |
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Project Deliverables |
At the conclusion of this project, a journal paper will be submitted to a suitable, peer-reviewed publication. A final report summarizing the findings of this research will also be submitted. | ||||
Anticipated Benefits |
The integration of thermographic and microwave NDT methods may achieve new results that one method alone cannot achieve. Further, this new method may have the potential to address issues in NDT&E that |
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Milestones |
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