
%0 Journal Article
%A Pollard, HF 
%T The Mechanical Impulse Method for Determining Dynamic Elastic Moduli and Internal Friction of Solids
%J Australian Journal of Physics
%D 1964/03/01
%V 17
%N 1
%P 8-25
%K 
%R https://doi.org/10.1071/PH640008
%U https://www.publish.csiro.au/paper/PH640008 
%X The theory governing the excitation of a linear mechanical system by delta function impulse is summarized. In the case of a finite elastic rod excited by an impulse, the Fourier transform of the output function enables the frequency spectrum of the rod to be obtained. A spectrometer for accomplishing this operation is described and a comparative study is made between the impulse and resonance responses of a cylindrical rod 
