Abstract
The paper deals with the problem of optimal design of annular plates against creep buckling. The design variable, i.e. the plate thickness function, is determined so as to minimize the total volume of a plate under given external load (radial pressure) and the critical time. A circularly symmetric thickness function is analysed but unsymmetric buckling modes are also admitted. The problem is solved by the use of Pontryagin’s maximum principle.
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