Optimal Structural Design in Rheology

[+] Author and Article Information
Michal Życzkowski

Department of Applied Mechanics, Politechnika Krakowska (Technical University of Cracow), Krakôw, Poland

J. Appl. Mech 38(1), 39-46 (Mar 01, 1971) (8 pages) doi:10.1115/1.3408764 History: Received April 22, 1969; Revised May 11, 1970; Online July 12, 2010


Typical objectives of structural design and typical constraints in rheology are discussed and classified. They are divided into two groups: the objective may depend on time (creep velocities, creep displacements, stress relaxation), or may be independent of time (time to rupture, critical time in creep buckling problems). The optimal shape may be either constant in time (called here “absolute optimum”), or a function of time (temporary optimum). The latter case is of restricted engineering interest; the notion of “engineering optimum” is here introduced (constant shape, not strictly optimal). Several problems are treated in detail.

Copyright © 1971 by ASME
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