ItemArticle

Propagation of SH Waves in Piezo-Flexoelectric-Layered Structures with Imperfect Interfaces: Analytical Formulation and Data-Driven Surrogates

Title
Propagation of SH Waves in Piezo-Flexoelectric-Layered Structures with Imperfect Interfaces: Analytical Formulation and Data-Driven Surrogates
Creator
Zhang, Xiaoming; Seema
Description
This study presents an analytical and data-driven investigation of shear-horizontal (SH) wave propagation in layered piezo-flexoelectric (PFE) materials with imperfect interfaces. The novelty lies in integrating flexoelectric coupling and interfacial defects within a unified dispersion framework, supported by physics-consistent machine-learning surrogates for efficient parametric analysis. Governing electromechanical equations are formulated and solved under mechanical, electrical, and interfacial continuity conditions to derive dispersion relations linking phase velocity with wavenumber, flexoelectric parameters, and interface stiffness under electrically open and short-circuited boundary conditions. The results show that flexoelectric effects strongly influence dispersion at short wavelengths, while interface imperfections significantly reduce phase velocity and increase attenuation sensitivity. Electrically open conditions enhance electromechanical coupling, whereas short-circuit conditions suppress dispersion sensitivity. To accelerate large-scale evaluations, surrogate models are developed that accurately reproduce analytical dispersion behavior with substantially reduced computational cost. The proposed hybrid framework provides improved insight into guided wave mechanics in stratified smart materials and offers an efficient tool for the analysis and design of piezo-flexoelectric structures in sensing and MEMS applications. World Scientific Publishing Europe Ltd.
Source
International Journal of Applied Mechanics;Issue;;Article No.;2650042;
Date
01-01-2026
Publisher
World Scientific
Subject
flexoelectricity; imperfect interface; machine learning; physics-informed neural networks; Shear-horizontal wave
Coverage
Zhang X., School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo, 454003, China, Henan International Joint Laboratory of Advanced Electronic, Packaging Materials Precision Forming, Henan Polytechnic University, Jiaozuo, 454003, China; Seema, Christ University, Bengaluru, 560029, India
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 17588251;
Format
online
Language
English
Type
Article

Citation

Zhang, Xiaoming; Seema, “Propagation of SH Waves in Piezo-Flexoelectric-Layered Structures with Imperfect Interfaces: Analytical Formulation and Data-Driven Surrogates,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/23027.

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