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Eight-node brick element (C3D8 and F3D8)

The C3D8 element is a general purpose linear brick element, fully integrated (2x2x2 integration points). The shape functions can be found in [33]. The node numbering follows the convention of Figure 43 and the integration points are numbered according to Figure 44. This latter information is important since element variables printed with the *EL PRINT keyword are given in the integration points.

Figure 43: 8-node brick element
\begin{figure}\epsfig{file=C3D8.eps,width=10cm}\end{figure}

Figure 44: 2x2x2 integration point scheme in hexahedral elements
\begin{figure}\epsfig{file=Int8.eps,width=8cm}\end{figure}

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.


next up previous contents
Next: C3D8R and F3D8R Up: Element Types Previous: Element Types   Contents
guido dhondt 2012-10-06