Optimum design of stiffened plates

Jármai, Károly (2000) Optimum design of stiffened plates. JOURNAL OF COMPUTATIONAL AND APPLIED MECHANICS, 1 (1). pp. 49-69. ISSN 1586-2070

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Abstract

The aim of this paper is to show how to make real structural optimizations on a strong theoretical background. Using stiffened plates one can get a lightweight and stiff structure. Several calculations have been developed for stiffened plates. All of them are approximations: the Massonnet and the Gienke techniques. Cost calculation is also important, due to the expensive welding technologies. Two applications are shown: shipdeck panel and compressed stiffened plate. It is shown that using optimization, one can reduce the total cost of the structure. In countries where fabrication costs are high the number of stiffeners is small and the thickness is large. In countries where fabrication costs are low the number of stiffeners is large and the thickness is small [1, 1999].

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