Transverse Vibration of Sandwich Beams with Thermal-Induced Nonuniform Sectional Properties
Publication: Journal of Aerospace Engineering
Volume 32, Issue 3
Abstract
This paper presents an analytical study of the transverse vibration of sandwich beams considering the thermal-induced nonuniform cross-sectional properties. Free vibration frequency formulas of sandwich beams, under linearly varied nonuniform temperature distribution scenarios, with and without considering the effect of transverse shear deformation, were derived. The effects of transverse shear deformation of the middle part of the sandwich beam and of the reduction of Young’s modulus in the bottom layer and of the shear modulus in the middle part near the bottom layer on the transverse vibration of the sandwich beam were discussed. The results highlight the importance of considering nonuniform cross-sectional properties and associated shear effects in the dynamic analysis of sandwich beams.
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Acknowledgments
The first author acknowledges the K. C. Wong Magna Fund at Ningbo University for their financial support.
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©2019 American Society of Civil Engineers.
History
Received: Jun 28, 2018
Accepted: Nov 13, 2018
Published online: Mar 14, 2019
Published in print: May 1, 2019
Discussion open until: Aug 14, 2019
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