Numerical and Experimental Stress Analysis of a Thin-Walled Cylindrical Tank with a Flat Bottom

Methodology for design of a thin-walled cylindrical thank with a flat bottom is presented in this paper. Except design, methodology for analytical, numerical and experimental analysis of stresses on the thank is also presented. After analytical calculations, geometrical modeling is carried out using CAD/CAM/CAE system CATIA. Distribution and values of principal strains and stresses are presented. Mathematical and numerical model is developed for linear elastic and isotropic material. In addition, introduction is given for theory of stresses for thin-walled thanks. For numerical structural analysis finite element method is used. Experimental stress analysis is carried out by tensometric measuring. Comparison of results from analytical, numerical and experimental analysis a predominantly good agreement with certain deviations can be found. Based on the comparison of the results obtained using analytical calculation, numerical method and experiment, a good match of the results can be observed. By comparing the results, the FEM model was verified.