Experimental and Theoretical Investigation of the Plastic Deformation of Cantilever Beams Subjected to Impulsive Loading

[+] Author and Article Information
S. R. Bodner

Brown University, Providence, R. I.

P. S. Symonds

Division of Engineering, Brown University, Providence, R. I.

J. Appl. Mech 29(4), 719-728 (Dec 01, 1962) (10 pages) doi:10.1115/1.3640660 History: Received July 31, 1961; Online September 16, 2011


The experimental techniques and the results obtained in a program to evaluate the assumptions of dynamic, rigid-plastic theory of beams are presented. The experiments used steel and aluminum-alloy cantilever beams subjected to either a rapid velocity change at the base or to an impulsive load at the tip. A rigid-plastic theory that includes the strain-rate dependence of the yield stress and geometry changes is outlined for the case of the tip impulsive loading. The predictions of this theory are in satisfactory agreement with the experimental results.

Copyright © 1962 by ASME
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