Centered neutral axis method

The Equivalent Area Method is also known as file Shifted Neutral Axis Method . This procedure is in contrast with the Centered Neutral Axis Method which assumes that the neutral axis is on the centerline. The Centered Neutral Axis Method is easier to apply but also results in a conservative anchorage design. The Equivalent Area method is more accurate and will result in reduced anchorage requirements. Both methods are used to determine the anchorage requirements and the base plate details of a vertical vessel supported on a skirt. 

Procedure 4-15 Design of Base Details for Vertical Vessels - Centered Neutral Axis Method... 

This procedure is based on the centered neutral axis method and should be used for relatively small or simple vertical vessels supported on skirts. 

There are many parameters that can be adjusted to achieve desired features. A number of tuning/coupling effects can be achieved by the arrangement of the neutral axis, principal axes of inertia, or shear center relative to the position and direction of the loads. Moreover, the exploitation of the anisotropic properties of fibrous composites allows for additional tailorable couplings. Unlike the traditional rotor blade with almost constant structural properties over the blade length, future blades may be developed with the aid of advanced computational methods to evaluate arbitrary designs. 

---