Analysis of Vibro-Acoustic Modulations in Nonlinear Acoustics Used for Impact Damage Detection - Numerical and Experimental Study
2013 ◽
Vol 558
◽
pp. 341-348
◽
Keyword(s):
The paper investigates experimentally the effect of low-frequency vibration on nonlinear vibro-acoustic wave modulations applied to the detection of Barely Visible Impact Damage (BVID) in a composite plate. Finite Element (FE) modeling was used in a pretest stage to identify different motion scenarios of delaminated surfaces and relate them to natural frequencies of the damaged plate. In particular the opening-closing and frictional sliding actions of the defected interfaces have been considered. Subsequently, the identified frequencies have been used for low frequency excitation in nonlinear acoustic experiments on a composite plate with impact damage.
2019 ◽
Vol 104
(1-4)
◽
pp. 433-449
Keyword(s):
2004 ◽
Vol 18
(17n19)
◽
pp. 2708-2712
2018 ◽
Vol 10
(3)
◽
Keyword(s):
2007 ◽
Vol 353-358
◽
pp. 2479-2482
Keyword(s):
2012 ◽
Vol 23
(13)
◽
pp. 1433-1449
◽