FAST MULTI-FRAME CAMERA TO MEASURE HOT SPOTS IN SHOCKED ENERGETIC MICROSTRUCTURES
Abstract
This proposal requests funding to acquire a high-speed camera that can acquire eight frames at a rate of a billion frames per second, which represents the current state of the art. This camera will be interfaced to a microscope that observes tiny model energetic microstructures during high-speed impacts with 0-6 km-s flyer plates. The multiple frames of the camera will allow its use for various kinds of hyperspectral imaging, where dynamic images of the shocked microstructure are viewed in different wavelengths of light. One important application will be imaging the hot spots produced at sites where the impact energy is concentrated by the microstructure. These are the locations where widespread energetic reactions originate. By imaging them in two or more colors, it will be possible to produce a high-resolution temperature map at multiple times during the impact. The results obtained with this camera will be analyzed by machine learning techniques to explain how hot spots are produced in energetic microstructures. High-resolution measurements of the microstructure will be transferred to theoretical colleagues who will develop tools to simulate the results. These tools will become a microstructurally-aware reactive burn model which can predict how energetic materials will respond to external stimuli, allowing the prediction of energetic material response and the design of better and safer energetic materials needed to support the US Air Force mission. Graduate students and postdoctoral researchers in Prof. Dlott’s laboratory at the University of Illinois will interface this camera to a microscope equipped with shock wave generation and detection technology. They will study shocked microstructures, work with theorists on data interpretation and present their work in archival peer-reviewed publications and at national and international meetings. Their education will position them to become leading scientists at government labs, at universities and in industry. They will become hands-on experts at understanding dynamic material interactions involved in myriad applications in aerospace and manufacturing.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 07, 2023
- Source ID
- FA95502110448
Entities
People
- Dana D. Dlott
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Illinois Urbana–Champaign