The Effect of Thermal Prestress on the Free Vibration Characteristics of Clamped Rectangular Plates: Theory and Experiment

[+] Author and Article Information
K. D. Murphy, L. N. Virgin

Department of Mechanical Engineering, Duke University, Durham, NC 27708-0300

S. A. Rizzi

NASA Langley Research Center, Structural Acoustics Branch, Hampton, VA 23681-0001

J. Vib. Acoust 119(2), 243-249 (Apr 01, 1997) (7 pages) doi:10.1115/1.2889710 History: Received January 01, 1995; Online February 26, 2008


In a combined theoretical and experimental approach, the free vibration characteristics of a uniformly heated, fully clamped (out-of-plane), rectangular plate are considered. Specifically, this work focuses on the behavior of the small amplitude natural frequencies as the temperature is increased from the ambient. The effects of initial geometric imperfections, modal coupling, imperfect clamping (in-plane) and post-buckling are addressed. Comparisons between theory and experiment show excellent agreement.

Copyright © 1997 by The American Society of Mechanical Engineers
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