The Lamb wave propagation through a thin plate with periodic spatiotemporal variation of material property was investigated through numerical simulations. It was found that regular oscillations of Young's modulus in both space and time can lead to the creation of distinct band gaps for different modes of Lamb wave. Moreover, the dispersion relation for each mode was dependent on the direction of wave propagation (i.e., nonreciprocal). These results allow the Lamb wave modes to be reduced to a single mode traveling in a single direction for specific frequencies. This frequency range was observed to widen with an increasing modulation amplitude of Young's modulus but was not significantly altered by the modulation frequency. The insights derived from this study indicate that spatiotemporal control of material property can be used to effectively isolate Lamb wave modes and reduce reflections, leading to an improvement in the accuracy of the structural health monitoring of materials.
Skip Nav Destination
Article navigation
October 2019
Research-Article
Asymmetric Lamb Wave Propagation and Mode Isolation in Thin Plate With Spatiotemporal Periodic Stiffness
Liuxian Zhao,
Liuxian Zhao
Temasek Laboratories,
50 Nanyang Drive,
Singapore 637553
e-mail: lxzhao@ntu.edu.sg
Nanyang Technological University
,50 Nanyang Drive,
Singapore 637553
e-mail: lxzhao@ntu.edu.sg
Search for other works by this author on:
Chang Quan Lai
Chang Quan Lai
Temasek Laboratories,
50 Nanyang Drive,
Singapore 637553
e-mail: cqlai@ntu.edu.sg
Nanyang Technological University
,50 Nanyang Drive,
Singapore 637553
e-mail: cqlai@ntu.edu.sg
Search for other works by this author on:
Liuxian Zhao
Temasek Laboratories,
50 Nanyang Drive,
Singapore 637553
e-mail: lxzhao@ntu.edu.sg
Nanyang Technological University
,50 Nanyang Drive,
Singapore 637553
e-mail: lxzhao@ntu.edu.sg
Chang Quan Lai
Temasek Laboratories,
50 Nanyang Drive,
Singapore 637553
e-mail: cqlai@ntu.edu.sg
Nanyang Technological University
,50 Nanyang Drive,
Singapore 637553
e-mail: cqlai@ntu.edu.sg
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the Journal of Vibration and Acoustics. Manuscript received October 17, 2018; final manuscript received April 2, 2019; published online May 22, 2019. Assoc. Editor: Mahmoud Hussein.
J. Vib. Acoust. Oct 2019, 141(5): 051005 (6 pages)
Published Online: May 22, 2019
Article history
Received:
October 17, 2018
Revision Received:
April 2, 2019
Accepted:
April 4, 2019
Citation
Zhao, L., and Lai, C. Q. (May 22, 2019). "Asymmetric Lamb Wave Propagation and Mode Isolation in Thin Plate With Spatiotemporal Periodic Stiffness." ASME. J. Vib. Acoust. October 2019; 141(5): 051005. https://doi.org/10.1115/1.4043509
Download citation file:
Get Email Alerts
Cited By
Numerical Analysis of the Tread Grooves’ Acoustic Resonances for the Investigation of Tire Noise
J. Vib. Acoust (August 2024)
On Dynamic Analysis and Prevention of Transmission Squawk in Wet Clutches
J. Vib. Acoust (June 2024)
Related Articles
Inertia Modulated Meta-Structure With Time-Varying Inertia Amplification
J. Appl. Mech (February,2024)
Roton-Enabled Mechanical Diode at Extremely Low Frequency
J. Appl. Mech (January,2024)
Tuning Band Structures of Two-Dimensional Phononic Crystals With Biasing Fields
J. Appl. Mech (September,2014)
A Two-Way Unidirectional Narrow-Band Acoustic Filter Realized by a Graded Phononic Crystal
J. Appl. Mech (September,2017)
Related Proceedings Papers
Related Chapters
Moving Objects Detection Based on Background Updating and Spatiotemporal Saliency Map
International Conference on Control Engineering and Mechanical Design (CEMD 2017)
Mining Association Rules for Trajectories of Spatiotemporal Data
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
Electronic Properties of a Two-Dimensional Ring-Shaped Kronig-Penney Lattice with a Positional Disorder
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3