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Special Issue: The 100th Anniversary of the Timoshenko-Ehrenfest Beam Model
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Journal Articles

Did S. P. Timoshenko and P. Ehrenfest Overestimate the Importance of the Fourth-Order Time Derivative in Their Beam Theory?

Isaac Elishakoff
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. December 2022, 144(6): 061012.
Paper No: VIB-22-1253
DOI: https://doi.org/10.1115/1.4055975
Published Online: November 9, 2022
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Topics: Euler-Bernoulli beam theory, Rotational inertia, Shear (Mechanics), Vibration, Shear deformation, Elasticity, Dynamics (Mechanics), Boundary-value problems, Acoustics
Journal Articles

A Proof-of-Concept Study on an Internal-Resonance-Based Piezoelectric Energy Harvester With Coupled Three-Dimensional Bending-Torsion Motions

Yimin Fan, Mergen H. Ghayesh, Tien-Fu Lu
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. December 2022, 144(6): 061004.
Paper No: VIB-22-1135
DOI: https://doi.org/10.1115/1.4055720
Published Online: October 7, 2022
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Topics: Energy harvesting, Excitation, Resonance, Torsion, Vibration, Frequency response