Two-point bending of a pipe due to self weight: CAXA and SAXA elements

In the analyses that test the CAXA elements, only the symmetric half of the structure is considered. The models using full-integration and reduced-integration second-order elements employ one element through the thickness and seven elements along the pipe, with two equal-sized elements along $CB$ and five equal-sized elements along $BA$. The models using the lower-order fully integrated elements employ twice as many elements in both the radial and axial directions. The models using the lower-order reduced-integration elements employ four times as many elements in both the radial and axial directions.

In the analyses that test the SAXA elements, only the symmetric half of the structure is considered. Second-order element models use seven elements along the pipe, with two equal-sized elements along $CB$ and five equal-sized elements along $BA$. First-order element models use 14 elements along the pipe, with four equal-sized elements along $CB$ and 10 equal-sized elements along $BA$.