Abstract
In this paper, we study a thick cylinder with uncertain external pressure. The traditional model was extended in fuzzy context. We use the governing equation which was rewritten as delta operator equation. The interpretations of external pressure are based on triangular, trapezoidal and Gaussian fuzzy numbers. By Adomian Decomposition Method gives an approximate solution. The maximal and minimal radial stresses are obtained, corresponding to the level cut. Finally, we get the methodology for simulating uncertain problems in fuzzy context and utility of each membership function.
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