Transient motion of a circular plate after an impact.
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.
Moore
Thomas R
TR
Department of Physics, Rollins College, Winter Park, Florida 32789, USA. tmoore@rollins.edu
Zietlow
Daniel W
DW
Gorman
Christopher W
CW
Griffin
Donald C
DC
Ballance
Connor P
CP
Parker
David J
DJ
D003198:Computer Simulation; D003300:Copper; D004867:Equipment Design; D007368:Interferometry; D008422:Materials Testing / Q000295:instrumentation / Q000379:methods; D008962:Models, Theoretical; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D013997:Time Factors; D015032:Zinc
C048399:brass; D003300:Copper; D015032:Zinc