Improved spectrum method for impact damage characterization in the composite beam using Lamb waves

Ultrasonics ◽  
2021 ◽  
Vol 111 ◽  
pp. 106336
Author(s):  
Fei Gao ◽  
Jiadong Hua ◽  
Jing Lin ◽  
Liang Zeng
Keyword(s):  
Composite Beam ◽  
Lamb Waves ◽  
Impact Damage ◽  
Spectrum Method ◽  
Damage Characterization

scholarly journals Impact Damage Detection of FRP Laminates Based on Spectrum Analysis of Lamb Waves

2012 ◽  
Vol 78 (790) ◽  
pp. 879-889
Author(s):  
Akihiro WADA ◽  
Shinya MOTOGI ◽  
Tomohiro YAMASAKI
Keyword(s):  
Damage Detection ◽  
Spectrum Analysis ◽  
Lamb Waves ◽  
Impact Damage

Damage characterization using CNN and SAE of broadband Lamb waves

Ultrasonics ◽  
2022 ◽  
Vol 119 ◽  
pp. 106592
Author(s):  
Fei Gao ◽  
Jiadong Hua
Keyword(s):  
Lamb Waves ◽  
Damage Characterization

scholarly journals Experimental Study of Lamb Waves Propagation inside an Impact Damage in the Size of the Used Wavelength

2020 ◽  
Vol 56 (2) ◽  
pp. 141-150
Author(s):  
S. Taleb ◽  
L. Rittmeier ◽  
M. Sinapius ◽  
F. Boubenider ◽  
D. Schmidt
Keyword(s):  
Experimental Study ◽  
Lamb Waves ◽  
Impact Damage ◽  
Waves Propagation

Carbon Fiber Composite Beam Damage Model Identification

2016 ◽  
Author(s):  
Alexander H. Pesch ◽  
Ryan J. Madden ◽  
Richard E. Martin ◽  
Jerzy T. Sawicki
Keyword(s):  
Carbon Fiber ◽  
Composite Beam ◽  
Impact Damage ◽  
Fiber Composite ◽  
Damage Model ◽  
Model Identification ◽  
Experimental System ◽  
Modal Testing ◽  
Carbon Fiber Composite ◽  
Localized Damage

The technique of model-based identification is proposed to extract a model for damage in composite materials from experimental data. The proposed method is demonstrated on a unidirectional carbon fiber reinforced polymer (CFRP) beam. Impact damage is seeded in the CFRP beam using a spherical punch, causing localized damage. The specimen is evaluated through modal testing before and after the damage is seeded, with the healthy case modeled using the FEM. Finally, a virtual controller is found which eliminates error in response between the healthy model and damaged experimental system. The virtual controller, being in feedback with the healthy model at the FE node where the damage occurs, reflects the effect of the localized damage. It is found that the seeded impact damage reduces stiffness and is a source of damping inside the composite beam. Interpretation of the local damage is made through the curve fitting of the identified dynamics. To confirm the efficacy of the fit, a closed-loop is made with the healthy model which is then compared to the data from the damaged system.

Detection of Low-velocity Impact Damage in Composite Plates using Lamb Waves

2004 ◽  
Vol 3 (1) ◽  
pp. 33-41 ◽  
Author(s):  
K. Diamanti ◽  
J. M. Hodgkinson ◽  
C. Soutis
Keyword(s):  
Lamb Waves ◽  
Impact Damage ◽  
Composite Plates ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact
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