Wellenausbreitung und ihre Beeinflussung in periodischen piezoelektrischen Laminaten mit Elektroden und Rissen
Zusammenfassung der Projektergebnisse
Analysis and understanding of the elastic wave propagation phenomena in smart periodic piezoelectric composites, which are also often referred to as smart piezoelectric phononic crystals (PCs) or smart piezoelectric acoustic metamaterials (AMMs), are very important to the design and optimization of novel high-performance acoustic/elastic wave devices, noise and vibration attenuating or isolating structures, smart structures, and structural health monitoring (SHM), etc. In this project, elastic wave propagation problems in piezoelectric PC/AMM laminates consisting of periodically arranged laminate layers with cracks/delaminations and electrodes have been investigated. Cracks and delaminations have been considered in this study, because they are often unavoidable in brittle piezoelectric materials (especially piezo-ceramics) and multi-layered piezoelectric/elastic laminates, and they can be also intentionally introduced to tune the elastic wave propagation characteristics. Properly placed electrodes subjected to an adequate electrical field have been introduced in this analysis to control or manipulate the elastic wave field in the targeted operating frequency ranges by utilizing the electro-mechanical coupling effect, which allows the conversion from the electrical energy into the mechanical energy and vice versa. Novel theoretical models for the elastic wave propagation analysis in piezoelectric PC/AMM laminates with cracks or delaminations and electrodes have been established. Accurate and efficient semi-analytical numerical simulation tools based on the boundary integral equation method (BIEM), the spectral element method (SEM), and their coupled hybrid form (BIEM+SEM) for piezoelectric PC/AMM laminates with cracks/delaminations and electrodes have been implemented. The developed theoretical models and numerical simulation tools have been validated either by each other or by other numerical methods such as the finite element method (FEM). The analytical/semi-analytical nature of the established theoretical models allows us to gain a deeper understanding of the physical mechanisms of the complex elastic wave propagation phenomena, while the implemented numerical methods provide us highly accurate and efficient numerical simulation tools. The developed theoretical models and numerical methods are particularly suitable to describe the complex elastic wave propagation phenomena in piezoelectric PC/AMM laminates with cracks or delaminations and electrodes. By using the developed theoretical models and numerical simulation tools, detailed parametrical studies have been conducted to analyze the effects of the key influencing factors on the elastic wave propagation characteristics in piezoelectric PCAMM laminates with cracks/delaminations and electrodes. The effects of the cracks/delaminations and electrodes on the elastic wave propagation characteristics in piezoelectric PC/AMM laminates have been also analyzed. Several extraordinary elastic wave propagation phenomena in piezoelectric PC/AMM with cracks or delaminations and electrodes have been revealed within the framework of the project, such as the frequency band-gaps, elastic wave blocking, elastic wave localization or focusing, elastic wave guiding, elastic wave filtering, unidirectional elastic wave propagation, and elastic wave demultiplexing, etc. Moreover, the tunability or manipulability of the elastic wave propagation characteristics in piezoelectric PC/AMM laminates with cracks/delaminations and electrodes by the electrical field has been also investigated. The developed theoretical models and numerical simulation methods are novel and original, and the problems addressed in this project are highly emerging and not yet tackled in other references. The achieved research results and the gained knowledge in this project may promote the realization and the application of novel smart piezoelectric PC/AMM laminates as well as acoustic/elastic wave devices, such as wave blockers or isolators, wave focusing lenses, wave guiders, wave cloaks, wave black holes, wave filters, wave energy harvesters, wave diodes, and wave demultiplexers, etc.
Projektbezogene Publikationen (Auswahl)
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Semi-analytical hybrid approach for modelling wave motion excited by a piezoelectric transducer in periodic layered composite with a crack. 2018 Days on Diffraction (DD), 130-135. IEEE.
Golub, M.V.; Shpak, A.N.; Fomenko, S.I. & Zhang, Ch.
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Wave phenomena and band-gap formation in layered phononic crystals with functionally graded interlayers and periodic arrays of cracks. Journal of Physics: Conference Series, 1092, 012035.
Fomenko, Sergey I.; Golub, Mikhail V. & Zhang, Chuanzeng
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Band-gap and pass-band classification for oblique waves propagating in a three-dimensional layered functionally graded piezoelectric phononic crystal. Journal of Sound and Vibration, 439, 219-240.
Fomenko, Sergey I.; Golub, Mikhail V.; Chen, Ali; Wang, Yuesheng & Zhang, Chuanzeng
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Free vibration and active control of prestretched multilayered electroactive plates. International Journal of Solids and Structures, 2019, 180:108-124.
Wang Y. Z., Li Z. Y., Chen W. Q. Zhang Ch. & Zhu J.
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Modelling of wave propagation in layered phononic crystal with multiple internal cracks and electrodes. AIP Conference Proceedings, 2240(2020), 020014. AIP Publishing.
Golub, Mikhail V.; Doroshenko, Olga V.; Fomenko, Sergey I.; Wang, Yanzheng & Zhang, Chuanzeng
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Wave propagation in elastic bimaterials with a doubly periodic array of interface cracks. Journal of Physics: Conference Series, 2020, 1461:012040
Golub M. V., Doroshenko O. V., Fomenko S. I. & Zhang Ch.
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Wave transmission through a layered piezoelectric/elastic phononic crystal with capacitors. Journal of Physics: Conference Series, 1461(1), 012040.
Fomenko, Sergey I.; Golub, Mikhail V. & Zhang, Chuanzeng
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An advanced boundary integral equation method for wave propagation analysis in a layered piezoelectric phononic crystal with a crack or an electrode. Journal of Computational Physics, 2021, 447:110669.
Fomenko S. I., Golub M. V., Doroshenko O. V., Wang Y. Z. & Zhang Ch.
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Elastic wave propagation, scattering and localization in layered phononic crystals with arrays of strip-like cracks. International Journal of Solids and Structures, 212, 1-22.
Golub, Mikhail V.; Doroshenko, Olga V.; Fomenko, Sergey I.; Wang, Yanzheng & Zhang, Chuanzeng
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Manipulation of the guided wave propagation in multilayered phononic plates by introducing interface delaminations. European Journal of Mechanics - A/Solids, 2021, 88:104266.
Wang Y. Z., Perras E., Golub M. V., Fomenko S. I., Zhang Ch. & Chen W. Q.
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Precise and target-oriented control of the low-frequency Lamb wave bandgaps. Journal of Sound and Vibration, 511, 116367.
Wang, Yanzheng; Zhang, Chuanzeng; Chen, Weiqiu; Li, Zhengyang; Golub, Mikhail V. & Fomenko, Sergey I.
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Electro-mechanical demultiplexer enabled by tunable electric circuits. Extreme Mechanics Letters, 51, 101610.
Wang, Yanzheng; Zheng, Yongfeng; Golub, Mikhail V.; Fomenko, Sergey I.; Huang, Guoliang; Chen, Weiqiu & Zhang, Chuanzeng
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Interfacial delamination-induced unidirectional propagation of guided waves in multilayered media. Mathematics and Mechanics of Solids, 27(8), 1531-1545.
Wang, Yanzheng; Li, Zhengyang; Golub, Mikhail V.; Huang, Guoliang; Chen, Weiqiu & Zhang, Chuanzeng
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Waves Propagating in Nano-Layered Phononic Crystals with Flexoelectricity, Microstructure, and Micro-Inertia Effects. Nanomaterials, 12(7), 1080.
Zhu, Jun; Hu, Puying; Chen, Yudan; Chen, Shaowei; Zhang, Chuanzeng; Wang, Yanzheng & Liu, Dongying
