Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 3 6 2015 12 17 Static Structural Analysis of Water Tank 230 234 EN Pavol Lengvarsky Department of Applied Mechanics and Mechanical Engineering, Faculty of Mechanical Engineering, Technical university of Košice, 042 00 Košice, Slovak Republic Miroslav Pástor Jozef Bocko AJME20153615 10.12691/ajme-3-6-15 2015 8 4 2015 11 22 2015 12 15 The paper is devoted to the static analysis water tank. Three different thicknesses of walls of the water tank are proposed and the structure is analysed in order to find appropriate stress and deformation states of structure. The maximal stress level was higher than the yield strength of stainless steel used in structure so seven different variants of stiffeners were proposed for improving stability and strength of structure.