The C3D8 element is a general purpose linear brick element, fully integrated (2x2x2 integration points). The shape functions can be found in . The node numbering follows the convention of Figure 53 and the integration points are numbered according to Figure 54. 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:
The F3D8 element is the corresponding fluid element.