Vibration and Stability Analysis of Composite Beams
Summary
Composite beams, comprising two or more bonded materials such as fibres, laminates or sandwich assemblies, are celebrated for their high strength‐to‐weight ratios and tailored stiffness. Their dynamic response under mechanical, thermal or electromechanical loading is governed by an interplay of bending, shear deformation and axial coupling. Classical beam theories, notably Euler–Bernoulli and Timoshenko, have been extended by higher‐order formulations—such as Reddy’s third‐order shear deformation theory—to capture transverse shear and normal deformations without resort to empirical correction factors. Stability analysis addresses critical phenomena such as buckling under compressive or thermal stresses, post‐buckling behaviour and vibration‐induced dynamic instability. Contemporary research blends analytical solutions, finite‐element simulations and experimental validation to predict natural frequencies, mode shapes and critical loads with increasing fidelity. These efforts underpin applications ranging from aerospace wing spars and wind turbine blades to civil‐engineering girders and sensor‐actuator substrates, where accurate prediction of vibration characteristics and buckling thresholds is vital for design, health monitoring and failure prevention.
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Vibration and Stability Analysis of Composite Beams publication trend
The graph below shows the total number of articles in vibration and stability analysis of composite beams across all publications each year (not limited to Nature Index journals).
Technical terms
Composite beam: A structural member formed by bonding two or more materials to achieve combined mechanical properties not attainable by individual constituents.
Shear deformation theory: A beam formulation that accounts for transverse shear strains through higher-order displacement fields, enhancing accuracy for thick or layered sections.
Buckling: An instability phenomenon in which a member under compressive or thermal loading deforms laterally at a critical load or temperature.
Free vibration: The natural oscillatory motion of a structure in the absence of external, time-varying forces, characterised by its natural frequencies and mode shapes.
References
- Analytical solutions of Reddy, Timoshenko and Bernoulli beam models: A comparative analysis. European Journal of Mechanics - A/Solids (2023).
- Thermo-Mechanical Post Buckling Analysis of Multiwall Carbon Nanotube-Reinforced Composite Laminated Beam under Elastic Foundation. Curved and Layered Structures (2019).
- Free Vibration Analysis of Three Layered Beams with a Soft-Core Using the Transfer Matrix Method. Applied Sciences (2022).
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