TY - GEN
T1 - Ultrasonic guided wave imaging techniques in structural health monitoring
AU - Yan, Fei
AU - Rose, Joseph Lawrence
AU - Royer, Roger L.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Ultrasonic guided waves, due to theirs capability of interrogating a large structure from a single sensor position, has been proven as a promising tool for structural health monitoring (SHM). In this paper, we present two imaging approaches of utilizing guided wave leave-in-place sensors for early detection of defects in plate-like structures as well as for monitoring the defect growth. The first approach is based on a guided wave tomographic technique, in which the region surrounded by a sparse sensor array is monitored. The second one is a phased array approach, in which sensors are attached to a structure in a compact format to form an array. The region subjected to inspection and monitoring is the region outside the array. Both techniques have shown excellent capability of determining damage size, location, and severity.
AB - Ultrasonic guided waves, due to theirs capability of interrogating a large structure from a single sensor position, has been proven as a promising tool for structural health monitoring (SHM). In this paper, we present two imaging approaches of utilizing guided wave leave-in-place sensors for early detection of defects in plate-like structures as well as for monitoring the defect growth. The first approach is based on a guided wave tomographic technique, in which the region surrounded by a sparse sensor array is monitored. The second one is a phased array approach, in which sensors are attached to a structure in a compact format to form an array. The region subjected to inspection and monitoring is the region outside the array. Both techniques have shown excellent capability of determining damage size, location, and severity.
UR - http://www.scopus.com/inward/record.url?scp=78149405729&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78149405729&partnerID=8YFLogxK
U2 - 10.1115/SMASIS2008-592
DO - 10.1115/SMASIS2008-592
M3 - Conference contribution
AN - SCOPUS:78149405729
SN - 9780791843314
SN - 9780791843321
T3 - Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
SP - 247
EP - 253
BT - Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
T2 - ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
Y2 - 28 October 2008 through 30 October 2008
ER -