Full Field, Out-of-Plane Digital Image Correlation (DIC) from Ultra-High Speed Digital Cameras

We propose to develop and implement a full-field, non-contacting deformation and strain measurement system capable of operating at frequencies above 1 MHz with unprecedented accuracy. The system will incorporate two ultra-high speed cameras in order to obtain three-dimensional shape and deformation data using the digital image correlation method. To obtain optimal accuracy at high rates, we propose to implement optimized digital image processing algorithms to mitigate artifacts caused by the ultra high speed imaging sensor as well as the experimental conditions encountered during blast testing. The developed error mitigation algorithms will be incorporated into the proven digital image correlation software Vic-3D, and the system will be validated through extensive experiments. At the conclusion of the project, a fully functional prototype system will be delivered.