Converted document
$\newcommand{\lyxlock}{}$
Subsection 3.18.1: Logfile Up Subsection 3.18.1: Logfile Subsubsection 3.18.1.2: Face_Data Class

#### 3.18.1.1 Node_Data Class

The node_data class defines a set of nodal variables. The data is stored for each node that is listed in the item list of the node_data element or for all nodes if no list is defined. The following nodal variables are defined.
 Node variables Description x x-coordinate of current nodal position y y-coordinate of current nodal position z z-coordinate of current nodal position ux x-coordinate of nodal displacement uy y-coordinate of nodal displacement uz z-coordinate of nodal displacement vx x-coordinate of nodal velocity vy y-coordinate of nodal velocity vz z-coordinate of nodal velocity ax x-coordinate of nodal acceleration ay y-coordinate of nodal acceleration az z-coordinate of nodal acceleration Rx x-coordinate of nodal reaction force Ry y-coordinate of nodal reaction force Rz z-coordinate of nodal reaction force
For analyses using biphasic, biphasic-solute, and triphasic materials, the following additional variables can be defined.
 Node variables Description p effective fluid pressure vx x-component of solid velocity vy y-component of solid velocity vz z-component of solid velocity c[n] effective concentration of solute n, with n from 1 to 8
For heat transfer problems the following nodal variables are available.
 Node variables Description T Nodal temperature
For fluid analyses, the following variables can be defined.
 Node variables Description vx x-component of fluid velocity vy y-component of fluid velocity vz z-component of fluid velocity
For example, to store the current nodal positions of all nodes, use the following node_data element:
<node_data data="x;y;z"></node_data>

You can store the total nodal displacement for nodes 1 through 100, and all even numbered nodes 200 through 400 as follows:
<node_data data="ux;uy;uz">1:100:1,200:400:2</node_data>

Subsection 3.18.1: Logfile Up Subsection 3.18.1: Logfile Subsubsection 3.18.1.2: Face_Data Class