/SHELL

Block Format Keyword Describes input for 4-node shell elements.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/SHELL/`part_ID`/`unit_ID`
`shell_ID`	`node_ID`₁	`node_ID`₂	`node_ID`₃	`node_ID`₄		$ϕ_{s}$		`Thick`

Field	Contents	SI Unit Example
`part_ID`	Part identifier of the block. (Integer, maximum 10 digits)
`unit_ID`	Optional unit identifier. (Integer, maximum 10 digits)
`shell_ID`	Element identifier. (Integer)
`node_ID`₁	Node identifier 1. (Integer)
`node_ID`₂	Node identifier 2. (Integer)
`node_ID`₃	Node identifier 3. (Integer)
`node_ID`₄	Node identifier 4. (Integer)
$ϕ_{s}$	Orthotropy angle to element skew. 5 (Real)	$[\deg]$
`Thick`	Shell thickness. By default, this shell has the thickness given in the property set `prop_ID` of the part `part_ID`. (Real)	$[m]$

The identifier must be unique in each element family, but it is advised for each element type to have a unique element identifier in the global model.
More than one shell block can be used to define a part.
Any number of shells can be defined in one block.
For Coordinate system in 3-node shell element, refer to Radioss Coordinate System in the User Guide.
If def_orth = 1, the orthotropy angle, $ϕ_{s}$ is only used in /PLY and /PROP/TYPE19 (PLY).

Figure 1.