TY - GEN
T1 - Ultrasonic vibration method for damage detection in composite aircraft components
AU - Rose, J. L.
AU - Yan, F.
AU - Liang, Y.
AU - Borigo, C.
N1 - Funding Information:
This work is supported by AFOSR under STTR Grant #FA9550-10-C-0020 through program manager Dr. David Stargel.
PY - 2012
Y1 - 2012
N2 - A new ultrasonic vibration method has been developed for damage detection in composite aircraft components. The method is based on controlled vibrations introduced by special annular array actuators at ultrasonic frequency ranges that are above 20 kHz. It has been demonstrated that by applying different phase delays to the annular array elements and using different driving frequencies, one can use the annular array actuators to change the controlled vibrations introduced to a composite component. The controlled vibrations appear to have different sensitivity to different damage types and also boundary condition variations. Special loading functions in terms of different combinations of driving frequencies and phase delays have been identified for the detection of certain damage types in example aircraft composite components. Excellent damage sensitivity has been achieved.
AB - A new ultrasonic vibration method has been developed for damage detection in composite aircraft components. The method is based on controlled vibrations introduced by special annular array actuators at ultrasonic frequency ranges that are above 20 kHz. It has been demonstrated that by applying different phase delays to the annular array elements and using different driving frequencies, one can use the annular array actuators to change the controlled vibrations introduced to a composite component. The controlled vibrations appear to have different sensitivity to different damage types and also boundary condition variations. Special loading functions in terms of different combinations of driving frequencies and phase delays have been identified for the detection of certain damage types in example aircraft composite components. Excellent damage sensitivity has been achieved.
UR - http://www.scopus.com/inward/record.url?scp=84864007595&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864007595&partnerID=8YFLogxK
U2 - 10.1007/978-1-4614-2419-2_36
DO - 10.1007/978-1-4614-2419-2_36
M3 - Conference contribution
AN - SCOPUS:84864007595
SN - 9781461424185
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 359
EP - 367
BT - Topics in Modal Analysis II - Proceedings of the 30th IMAC, A Conference on Structural Dynamics, 2012
T2 - 30th IMAC, A Conference on Structural Dynamics, 2012
Y2 - 30 January 2012 through 2 February 2012
ER -