This is a general purpose linear brick element, fully integrated (2x2x2 integration points). The shape functions can be found in [27]. The node numbering follows the convention of Figure 21 and the integration points are numbered according to Figure 22. This latter information is important since element variables printed with the *EL PRINT keyword are given in the integration points.
Although the structure of the element is straightforward, it should not be used in the following situations: