On a Simplified Method for Solving Impulsively Loaded Structures of Rate-Sensitive Materials

[+] Author and Article Information
Nicholas Perrone

Structural Mechanics Branch, Office of Naval Research, Washington, D. C.

J. Appl. Mech 32(3), 489-492 (Sep 01, 1965) (4 pages) doi:10.1115/1.3627249 History: Received July 16, 1964; Online September 15, 2011


In an attempt to assess more completely rate-sensitive material effects, two fundamental structural elements are analyzed: A wire with an impulsively loaded end mass, and an impulsively loaded ring. The ring and wire are made of perfectly plastic, rate-sensitive materials. In each case, exact and approximate solutions are obtained for an exponential rate-sensitivity law. The results suggest that very good approximations to the exact solutions may be found by utilizing a rate-insensitive material with constant yield stress equal to the initial dynamic yield stress.

Copyright © 1965 by ASME
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