TY - JOUR
T1 - Use of a non-collinear wave mixing technique to image internal microscale damage in concrete
AU - Kim, Jin Yeon
AU - Bellotti, Aurelio
AU - Alapati, Prasanth
AU - Kurtis, Kimberly E.
AU - Qu, Jianmin
AU - Jacobs, Laurence J.
N1 - Publisher Copyright:
© 2022 Author(s).
PY - 2022/4/14
Y1 - 2022/4/14
N2 - This research demonstrates the feasibility of using a non-collinear wave mixing technique to image internal microscale damage throughout the interior volume of a relatively large (28 cm thick) concrete component. By exploiting the underlying mechanics of nonlinear wave mixing, it is possible to mix two incident waves with frequencies low enough to propagate without being scattered by the inherently heterogenous, concrete microstructure, while still being sensitive to damage features with length scales well below these incident wavelengths. For this study, scanning and imaging is accomplished by manually adjusting the locations of the two incident waves, while a knowledge of the wave speeds in concrete plus synchronization identifies the location of the mixing zone - the specific volume of concrete being imaged. The viability of the proposed technique is demonstrated by examining a concrete prism specimen with known, embedded internal microscale damage.
AB - This research demonstrates the feasibility of using a non-collinear wave mixing technique to image internal microscale damage throughout the interior volume of a relatively large (28 cm thick) concrete component. By exploiting the underlying mechanics of nonlinear wave mixing, it is possible to mix two incident waves with frequencies low enough to propagate without being scattered by the inherently heterogenous, concrete microstructure, while still being sensitive to damage features with length scales well below these incident wavelengths. For this study, scanning and imaging is accomplished by manually adjusting the locations of the two incident waves, while a knowledge of the wave speeds in concrete plus synchronization identifies the location of the mixing zone - the specific volume of concrete being imaged. The viability of the proposed technique is demonstrated by examining a concrete prism specimen with known, embedded internal microscale damage.
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U2 - 10.1063/5.0086194
DO - 10.1063/5.0086194
M3 - Article
AN - SCOPUS:85128491992
SN - 0021-8979
VL - 131
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 14
M1 - 145102
ER -