Dear friends, I want to carry out static simulation of tube sheet for evaporator calandria. The calandria is 10m long and 3200 in internal dia. The shell thickness is 12mm. Tube sheet thickness is 32mm. The calandria will undergo hydraulic testing at 4kg/cm2. I want to calculate the width and thickness of the stiffeners to be used. Please find the drawing for your reference. I am confused in applying loads and fixtures. Please help me out.