An axial stress of cylinder is a normal stress that lies parallel to the axis of cylindrical symmetry. Use our online axial stress of cylinder wall or tube calculator to calculate the stress in the axial direction. Cylinder stress is a stress with rotational symmetry, which remains unchanged even if the stressed object is rotated about fixed axis. Enter the internal pressure (p_{i}), external pressure (p_{o}), internal radius (r_{i}) and external radius (r_{o}) to compute the stress.