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J Acoust Soc Am. 2009 Feb;125(2):EL63-9. doi: 10.1121/1.3049584.

Transient motion of a circular plate after an impact.

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Department of Physics, Rollins College, Winter Park, Florida 32789, USA.


The transient response of a flat circular plate to a sudden impact has been studied experimentally and theoretically. High-speed electronic speckle pattern interferometry reveals the presence of pulses that travel around the edge of the plate ahead of the bending motion initiated by the strike. It is found that the transient motion of the plate is well described by Kirchhoff thin-plate theory over a time approximately equal to the time required for the initial impulse to circumvent the plate; however, a more sophisticated model is required to describe the motion after this time has elapsed.

[Indexed for MEDLINE]

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