Open AccessUncertain External Pressure Act on Thick Cylinder in Fuzzy Context
Author(s) -
Weera Yukunthorn,
Jessada Tariboon
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/639/1/012033
Subject(s) - fuzzy logic , context (archaeology) , cylinder , mathematics , operator (biology) , membership function , fuzzy number , gaussian , fuzzy set , function (biology) , mathematical analysis , mathematical optimization , computer science , geometry , physics , artificial intelligence , paleontology , biochemistry , chemistry , repressor , quantum mechanics , evolutionary biology , transcription factor , gene , biology
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.