TCL code to select SURF/SET element edges

Wesley_Peijnenburg2

Hi all,

 

I'm trying to automate the SURF/SET element edge selection for a mesh refinement study. In the GUI, three steps are required as shown below:

This generates the following TCL code:

*createentity sets cardimage=SURF name="set1"
*addedgesorfaces sets id=1 reversenormal=1 "user_ids={5 1 6 2 }" "edge_indices={{3} {3} {3} {3} }"
*setvalue sets id=1 STATUS=2 3150=0

 

For a slightly finer mesh, only the second line is different;

*addedgesorfaces sets id=1 reversenormal=1 "user_ids={30 31 27 37 10 9 33 3 4 6 36 }" "edge_indices={{1} {1} {3} {1} {1} {1} {3} {1} {1} {3} {1} }"

 

My question:

How can I automate in TCL the selection of both "user_ids" and "edge_indices"? I tried to use line #7 (inner contour line) but this is where I am stuck. Attached is the model.

Adriano_Koga

hi,

 

I don't have an exact answer to your question but maybe you could use this command below.

With this one, you have to supply a mark of element selection, and then a mark of edge nodes selection.

Not exact, but you could create a mark with all your elements and for the nodes, you could use the 'edges' command to extract a component named '^edges' and then create a mark of nodes based on this component in order to give this to the below command.

*contactsurfcreatewithfaces

Creates a contact surface using 2D element edges or 2D/3D element faces.

Syntax

*contactsurfcreatewithfaces name color elem_mark_id node_mark_id break_angle reverse_normals on_face

Type

HyperMesh Tcl Modify Command

Description

Creates a contact surface using 2D element edges or 2D/3D element faces.

Inputs

name

The name of the contact surface to create.

color

The color of the contact surface. Valid values are 1 through 64.

elem_mark_id

The ID of the mark that contains the elements to use. Valid values are 1 and 2.

node_mark_id

The ID of the mark that contains the nodes that define an edge or a face of an element. Valid values are 1 and 2.

break_angle

The break angle for finding adjacent elements.

reverse_normals

0 - Create contact surface along element normal.

1 - Create contact surface opposite element normal.

of_face

0 - Create contact surface on edge.

1 - Create contact surface on face.

 

 

Wesley_Peijnenburg2

@Adriano A. Koga:

Thanks a lot for this partial solution!

 

I was able to combine the code from your screenshot with the element selection code found here:

https://community.altair.com/community?id=community_question&sys_id=4f56c8f61b2bd0908017dc61ec4bcb2a

 

With that, the complete solution is as follows:

*createmark nodes 2 "by lines" 7
*createmark elems 1 "by node" {*}[hm_getmark nodes 2] 
*contactsurfcreatewithfaces "set_edges" 6 1 2 30.0 1 0
*setvalue sets id=1 cardimage="SURF"
*setvalue sets id=1 STATUS=2 3150=0

 

I appreciate your help!