Assuming a single-mode transverse displacement, a simple formula is derived for the transverse load-displacement relationship of a plate under in-plane compression. The formula is used to derive a simple analytical expression for the nonlinear dynamic response of postbuckled plates under sinusoidal or random excitation. The highly nonlinear motion of snap-through can be easily interpreted using the single-mode formula. Experimental results are obtained with buckled and cylindrical aluminum panels using discrete frequency and broadband excitation of mechanical and acoustic forces. Some important effects of the snap-through motion on the dynamic response of the postbuckled plates are described. Static tests were used to identify the deformation shape during snap-through.


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    Title :

    Nonlinear and snap-through responses of curved panels to intense acoustic excitation


    Contributors:
    Ng, C. F. (author)

    Published in:

    Publication date :

    1989-03-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English






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