Block2D Command

The block2D command generates meshes of quadrilateral elements in two or three dimensions. In three dimensions, a two-dimensional surface appropriate for shell analysis is generated.

block2d $nx $ny $e1 $n1 element (element arguments) {

1 $x1 $y1 <$z1>

2 $x2 $y2 <$z2>

3 $x3 $y3 <$z3>

4 $x4 $y4 <$z4>

<5> <$x5> <$y5> <$z5>

<6> <$x6> <$y6> <$z6>

<7> <$x7> <$y7> <$z7>

<8> <$x8> <$y8> <$z8>

<9> <$x9> <$y9> <$z9>

}

---

$nx	number of elements in the local x directions of the block
$ny	number of elements in the local y directions of the block
$e1	element from which the mesh generation will start
$n1	node from which the mesh generation will start
element	string defining which quadrilateral elements is being used (quad, ShellMITC4, bbarQuad, or enhancedQuad
(element arguments)	list of data parameters of element being used
{$x1, .... ,$x9} {$y1, .... ,$y9}	coordinates of the block elements in two dimensions
{$z1, .... $z9}	coordinate of the block elements in third dimension (optional, default=0.0)