Piezoelectric Dynamics in Composite Cylindrical Structures

Piezoelectric dynamics in composite cylindrical structures refers to the study of mechanical and electrical coupling in cylindrical bodies composed of piezoelectric materials integrated with reinforcing phases or layered assemblies. In such systems, axial, radial and circumferential deformations induce electric charges, while applied voltages generate strains. The composite nature often involves embedded fibres, nanotubes or multilayered shells to enhance stiffness, sensitivity or energy conversion. Analytical models range from classical Donnell–type shell theories to higher-order and nonlocal formulations, capturing size-dependent, interface-mediated effects at micro- and nano-scales. Numerical methods, particularly finite difference and finite element schemes, enable exploration of free and forced vibration characteristics, including natural frequencies, mode shapes and nonlinear responses. Stability phenomena, such as buckling under combined electrical and mechanical loads, or pull-in instability in fluid-conveying sensors, reflect the complex interplay of electromechanical forces. These dynamics underpin practical applications in adaptive structures, sensors, actuators and energy harvesters across aerospace, biomedical and civil engineering domains. Recent advances emphasise multifunctional performance, where tunable damping, temperature coupling and fluid interactions extend the operational bandwidth and durability of piezoelectric cylindrical composites.

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Research from all publishers

Recent work on fluid-conveying multiwalled piezoelectric nanosensors has employed surface and interface theories to examine the influence of viscoelastic foundations, residual stresses and piezoelectric constants on the dimensionless natural frequency and pull-in voltage under varying fluid velocities. Governing equations derived via Hamilton’s principle reveal a sensitive dependence of dynamic behaviour on fluid flow and nanoshell geometry, offering guidelines for the design of micro- and nanofluidic sensors with optimised stability and sensitivity.

Investigations into nonlinear bending of piezoelectric cylindrical shells reinforced with boron nitride nanotubes have applied Donnell shell theory, incorporating electro-thermo-mechanical coupling to derive constitutive relations for composite shells. Numerical solutions via finite difference methods highlight the roles of voltage, temperature gradients and nanotube volume fraction in controlling deflection and bending moments under axisymmetric loads, demonstrating enhanced stiffness and actuation performance in nanotube-reinforced shells.

A study on buckling of piezoelectric circular cylindrical shells under combined external pressure and radial electric loading has utilised linear ordinary differential equation models solved by finite difference techniques. Results indicate that the piezoelectric effect increases critical buckling loads, thereby improving structural stability. Comparative analyses underscore the importance of voltage modulation in delaying onset of instability, informing the design of adaptive pressure vessels and smart pipelines.

Piezoelectric Dynamics in Composite Cylindrical Structures publication trend

The graph below shows the total number of articles in piezoelectric dynamics in composite cylindrical structures across all publications each year (not limited to Nature Index journals).

Technical terms

Piezoelectric effect: The reversible coupling between mechanical strain and electric charge generation in certain crystalline materials.

Composite cylindrical structure: A hollow or solid cylinder composed of multiple materials or layers, often combining piezoelectric elements with reinforcements for tailored mechanical and electrical properties.

Pull-in instability: A dynamic phenomenon where electrostatic or electromechanical forces overcome restoring stiffness, causing a sudden collapse or contact in a sensor or actuator.

Buckling: A stability failure mode in slender or shell structures under compressive or external pressure loads, leading to large deformations at critical thresholds.

Donnell shell theory: A classical mathematical framework for analysing the behaviour of thin cylindrical shells under mechanical and electromechanical loading.

References

1. Vibration analysis and pull-in instability behavior in a multiwalled piezoelectric nanosensor with fluid flow conveyance. Beilstein Journal of Nanotechnology (2020).
2. Nonlinear Bending of Piezoelectric Cylindrical Shell Reinforced with BNNTs under Electro-Thermo-Mechanical Loadings. Materials Sciences and Applications (2015).
3. A study on buckling of piezoelectric circular cylindrical shell. IOP Conference Series Materials Science and Engineering (2019).