The effects of in-plane load on flutter characteristics of delaminated two-dimensional homogeneous beam plates at high supersonic Mach number are investigated theoretically. Linear plate theory and quasi-steady supersonic aerodynamic theory are employed. A simple beam-plate model is developed to predict the effects of in-plane load on flutter boundaries for the delaminated beam plates with simply supported ends. Results reveal that the presence of an in-plane compressive load degrades the stiffness and natural frequencies of the plate and thereby decreases the flutter boundary for the plate. However, for certain geometry, the flutter boundaries were raised due to flutter coalescence modes of the plate altered by the presence of the in-plane load on the plate.
Effects of In-plane Load on Flutter of Homogeneous Laminated Beam Plates with Delamination
Contributed by the Technical Committee on Vibration and Sound for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received Sept. 1999; revised July 2000. Associate Editor: B. Yang.
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Shiau, L., and Chen , Y. (July 1, 2000). "Effects of In-plane Load on Flutter of Homogeneous Laminated Beam Plates with Delamination ." ASME. J. Vib. Acoust. January 2001; 123(1): 61–66. https://doi.org/10.1115/1.1315593
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