@inproceedings{cbd7a50841bd4fccaa1ca3d62a98224a,
title = "Measuring full-field transient plate deformation using high speed imaging systems and 3D DIC",
abstract = "Three-dimensional surface deformation measurements were obtained to quantify dynamic material and structural response during buried blast loading. Using a synchronized high-speed stereo imaging system with an interframe time of 16.25μs and 38.25 μs, patterned stereovision images of the specimen were obtained. Results from the measurements indicate that maximum localized material deformations occurred directly above the buried blast location, with material response being a function of the depth of explosive burial. For relatively shallow (deep) depth of burial (DOB), plate surface velocities and accelerations exceed 220m{"}s-1(100m{"}s-1) and 6x106m{"}s-2(1.5x106m{"}s-1) during the first 30μs (80μs) after detonation, respectively. Analysis of full-field plate deformation reveled that the specimen experienced measured effective strains of nearly 8% (5%) and effective strain rates of more than 4000s-1 (1500s-1) during the initial 50μs (80μ) of the blast. In addition, a blast-induced, circularly-symmetric, traveling transient bending wave was observed in the plate with the radial wave velocity of Mach 2 (1.25) during the initial phase of the impact.",
keywords = "3D digital image correlation, Blast loading, CMOS and CCD, Full-field transient deformation measurements, High speed stereo-imaging, Image registration, Transient material response, Velocity, acceleration, strain and strain rate measurements",
author = "Vikrant Tiwari and Sutton, {Michael A.} and Gary Shultis and McNeill, {S. R.} and Shaowen Xu and Xiaomin Deng and Fourney, {William L.} and Damien Bretall",
year = "2009",
language = "English",
isbn = "9781615671892",
series = "Society for Experimental Mechanics - SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009",
pages = "481--488",
booktitle = "Society for Experimental Mechanics - SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009",
note = "SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009 ; Conference date: 01-06-2009 Through 04-06-2009",
}