Grid Mesh

Grid Mesh is used to generate mesh for orthogonal geometrical entities, quadrilaterals and/or triangles using quadrilateral and triangular elements. The feature does not support Polygons (more than 5 edges), Circle(s) and Arc(s).

Applicable Modules:

From the Main Menu, select Model > Mesh > Grid Mesh

From the Command Line, type 'GridMesh' or 'GRM'

Select Object

Select the objects to be meshed.

Surface

Select surface(s) to be meshed.

Map Mesh Area

Select domains enclosed by lines to be map meshed.

Select Surface(s)

Select the surfaces to be map meshed (In case object selection is Surface).

Mesh Size

Element Size

Enter the desired element size.

Ground Material Property

Select a Ground Material Property to be assigned to the mesh. Click to the right to Add new, Modify or Delete Ground Material Property.

Mesh Set

Enter the name of the Mesh Set.

Create new Mesh Set if same name exists

Check on to create a new Mesh Set if a Mesh Set with the same name exists.

Trapezoidal pattern permitted

Check on the option to allow trapezoidal shape elements when generating elements at slopes of enclosed domains.

Generate Higher Order Elements

Check on to generate higher order elements with intermittent nodes.

Use the Material assigned to Surface

Generates mesh elements with same Ground Material Property as that of the source Surface.

Click to generate mesh. The dialog box will close automatically.

Press the ESC key or click to close the dialog box.  

  After mesh is generated, work process will switch to the state of Select Surface(s)/Curve(s) upon clicking.

Note:

When Trapezoidal Shape Permitted is checked on , vertical lines are drawn irrespective of the connectivity of the horizontal lines and the sloped side. Vertical and horizontal lines are created at uniform spacing in generating elements. The elements at the sloped side are generated in the shapes of triangles and trapezoids as shown below:

If the option is unchecked, vertical lines are created only where the horizontal lines meet the sloped side. Therefore, the division of a domain is controlled by the criterion generating only triangular elements at the slope side as shown below: