TY - JOUR
T1 - An NDT technique for composite structures using visualized Lamb-wave propagation
AU - Yashiro, S.
AU - Takatsubo, J.
AU - Toyama, N.
N1 - Funding Information:
We performed a portion of this study under the contract “R&D for Structural Integrity Diagnostics” with RIMCOF, commissioned and funded by the Ministry of Economy, Trade and Industry (METI), as part of the “Advanced Materials and Process Development for Next Generation Structures” project for the “Civil Aviation Fundamental Technology Program” of METI, Japan.
PY - 2007/12
Y1 - 2007/12
N2 - This study proposes a non-destructive testing (NDT) technique that visualizes the propagation of ultrasonic waves in solids, including composite laminates. This technique provides a moving diagram of traveling waves through the use of a pulsed laser that scans a test piece. A non-contact scan by the pulsed laser for ultrasound generation with reception at a fixed point enables us to inspect an arbitrarily shaped object and also facilitates easy operation of the measurement system. We applied the proposed technique to the inspection of CFRP laminates and successfully visualized the wave scattering due to impact-induced delamination as well as the propagation of the S0 and A0 Lamb modes. We also addressed disbonding detection in a composite skin-stringer structure and concluded that the reliable detection of damage and the advantages of the proposed technique are applicable to inspections of composite structures.
AB - This study proposes a non-destructive testing (NDT) technique that visualizes the propagation of ultrasonic waves in solids, including composite laminates. This technique provides a moving diagram of traveling waves through the use of a pulsed laser that scans a test piece. A non-contact scan by the pulsed laser for ultrasound generation with reception at a fixed point enables us to inspect an arbitrarily shaped object and also facilitates easy operation of the measurement system. We applied the proposed technique to the inspection of CFRP laminates and successfully visualized the wave scattering due to impact-induced delamination as well as the propagation of the S0 and A0 Lamb modes. We also addressed disbonding detection in a composite skin-stringer structure and concluded that the reliable detection of damage and the advantages of the proposed technique are applicable to inspections of composite structures.
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U2 - 10.1016/j.compscitech.2007.04.006
DO - 10.1016/j.compscitech.2007.04.006
M3 - Article
AN - SCOPUS:35248835042
VL - 67
SP - 3202
EP - 3208
JO - Composites Science and Technology
JF - Composites Science and Technology
SN - 0266-3538
IS - 15-16
ER -