Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81060
PIRA download icon_1.1View/Download Full Text
Title: Nonlinear aspects of “breathing” crack-disturbed plate waves : 3-D analytical modeling with experimental validation
Authors: Wang, K 
Li, Y 
Su, Z 
Guan, R
Lu, Y
Yuan, S
Issue Date: Aug-2019
Source: International journal of mechanical sciences, Aug. 2019, v. 159, p.140-150
Abstract: Previously, a two-dimensional (2-D)analytical model for interpreting the modulation mechanism of a “breathing” crack on guided ultrasonic waves (GUWs)is developed [1]. Based on the theory of wave propagation in three-dimensional (3-D)waveguides and using an elastodynamic analysis, the 2-D model is extended to a 3-D regime, to shed light on the nonlinear aspects of GUWs disturbed by cracks with “breathing” traits. With the model, generation of contact acoustic nonlinearity (CAN)embodied in GUWs, subjected to the key parameters of a “breathing” crack (e.g., crack length), is scrutinized quantitatively. On this basis, a nonlinearity index is defined to link crack parameters to the quantity of extracted CAN. In virtue of the index, initiation of an undersized fatigue crack in a 3-D waveguide can be delineated at its embryonic stage, and, in particular, the crack severity can be quantitatively depicted. This facilitates prognosis of imminent failure of the monitored structure. Experimental validation is performed in which a hairline fatigue crack is evaluated, and the results well corroborate the crack parameters predicted by the 3-D analytical model.
Keywords: Analytical modeling
Contact acoustic nonlinearity
Fatigue crack
Guided ultrasonic waves
“breathing” crack
Publisher: Pergamon Press
Journal: International journal of mechanical sciences 
ISSN: 0020-7403
EISSN: 1879-2162
DOI: 10.1016/j.ijmecsci.2019.05.036
Rights: © 2019 Elsevier Ltd. All rights reserved.
© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
The following publication Wang, K., Li, Y., Su, Z., Guan, R., Lu, Y., & Yuan, S. (2019). Nonlinear aspects of “breathing” crack-disturbed plate waves: 3-D analytical modeling with experimental validation. International Journal of Mechanical Sciences, 159, 140-150 is available at https://doi.org/10.1016/j.ijmecsci.2019.05.036
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Wang_Nonlinear_Aspects_Breathing.pdfPre-Published version2.18 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Final Accepted Manuscript
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

78
Citations as of Aug 14, 2022

Downloads

2
Citations as of Aug 14, 2022

SCOPUSTM   
Citations

28
Citations as of Aug 12, 2022

WEB OF SCIENCETM
Citations

25
Citations as of Aug 11, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.