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Structural Acoustic Response of Shape Memory Alloy Hybrid Composite PanelsA method has been developed to predict the structural acoustic response of shape memory alloy hybrid composite panels subjected to acoustic excitation. The panel is modeled by a finite element analysis and the radiated field is predicted using Rayleigh's integral. Transmission loss predictions for the case of an aluminum panel excited by a harmonic acoustic pressure are shown to compare very well with a classical analysis. Predictions of the normal velocity response and transmitted acoustic pressure for a clamped aluminum panel show excellent agreement with experimental measurements. Predicted transmission loss performance for a composite panel with and without shape memory alloy reinforcement are also presented. The preliminary results demonstrate that the transmission loss can be significantly increased with shape memory alloy reinforcement.
Document ID
19960047667
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Turner, Travis L.
(NASA Langley Research Center Hampton, VA United States)
Date Acquired
August 17, 2013
Publication Date
March 1, 1996
Publication Information
Publication: Proceedings of the 4th Annual Workshop: Advances in Smart Materials for Aerospace Applications
Subject Category
Structural Mechanics
Accession Number
96N33277
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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