GEOMETRY BODY 2SURFS [bnam] snam1 snam2 [elt]

Next: GEOMETRY BODY 4SURFS [bnam] snam1 snam2 Up: GEOMETRY BODY Control Previous: GEOMETRY BODY SETS senam1 senam2 [divs]

GEOMETRY BODY 2SURFS [bnam] snam1 snam2 [elt]

This command is used to define a body from 2 surfaces.

bnam	=	name of the body , used at later references.
snam	=	names of the surfaces that define the body.
elt	=	element type on the body. Refer to command MESHING TYPES for a
		detailed description.

FEMGEN will generate the least twisted body that can be defined from the two specified surfaces. Straight lines connecting corresponding corners of the given surfaces will be generated, and also 3 or 4 surfaces connecting corresponding sides of the given surfaces. Whenever possible, instead of generating new objects, existing ones with the same topology are used.

**Figure 2.63:** A body from two 4sided surfaces
$\begin{figure} \centerline{ \psfig {figure=diagrams/body2s1.ps,width=1.5in} }\end{figure}$

**Figure 2.64:** A body from two 3sided surfaces
$\begin{figure} \centerline{ \psfig {figure=diagrams/body2s2.ps,width=1.5in} }\end{figure}$

Return Level: GEOMETRY BODY

Examples:

1.: GEOMETRY BODY 2SURFS B1 S1 S2
Create a body B1 with two opposing surfaces S1 and S2 and 3 or 4 side surfaces, with the default element types PE6, or HE8 respectively.
2.: GEOMETRY BODY 2SURFS B1 S1 S2 HE20
Create a body B1 with two opposing surfaces S1 and S2 and 4 side surfaces, with HE20 elements.

See also the following commands

'LABEL GEOMETRY BODIES'
'UTILITY DELETE BODIES'
'UTILITY TABULATE GEOMETRY BODIES'
'VIEW GEOMETRY'

Next: GEOMETRY BODY 4SURFS [bnam] snam1 snam2 Up: GEOMETRY BODY Control Previous: GEOMETRY BODY SETS senam1 senam2 [divs]

Femsys Limited
1st October 1999