Numerical Analysis of Filament Wound Cylindrical Composite Pressure Vessels Accounting for Variable Dome Contour

In this work, the stress distribution along cylindrical composite pressure vessels with different dome geometries is investigated. The contours are generated through an integral method based on shell stresses. Here, influence of each contour at interface dome-cylinder evaluated. At first, formulation for curve generation presented and solved contours. An analytical approach calculation secondary stresses in a vessel introduced. For analysis, three cases were investigated: (i) polymer liner; (ii) single layer carbon-epoxy wrapped (iii) multilayer vessel. Accounting nonlinear geometry seen to have effect vessel, also isotropic liner. Significant observed they reach maximum specific distance from interface. A discussion trend these presented. numerical results compared experimental It that present vicinity has significant failure mechanism, especially thick walled critical directly accounted initial design phase.