DRAG MESH

 

This function generates elements based on the selected element pattern.  One-dimensional elements will be dragged to form plate elements, and two-dimensional elements (plate) will be dragged to form solid elements (prism).

 

NOTE:  In eta/DYNAFORM, only the same types of elements can be included in a part.  For example, if the current part contains plate (shell) elements, the user cannot create any solid elements in this part.  eta/DYNAFORM will display a warning message in the prompt window to alert the user.

 

1.       ONE LINE DRAG

 

          Select the elements for the drag pattern by using the options in the SELECT ELEMENT dialog box.  Refer to Figure 4.4.2 of Section 4.4.2, PART/ADD ELEMENT.

 

          Select a line.  If the number of points is n, n-1 elements will be generated for each pattern element.

 

          The user can accept, reject, or remesh. 

 

2.       NORMAL DRAG

 

          Select the plate element pattern by using options in the SELECT ELEMENT dialog box.  Enter the thickness of normal drag and the number of layers in the POP-UP dialog box.

 

          The user can accept, reject, or remesh.

NOTE:  Plate element normals should be consistent in the drag pattern prior to the execution of NORMAL DRAG.

 

3.       3 OR 4 LINE DRAG

   

          Select the plate element pattern by using the options in the SELECT ELEMENT dialog box.

 

          Select three or four control lines to form a volume with the drag pattern. The user must select the control lines in clockwise or counterclockwise order.

 

  Enter the number of layers.

 

          The user can accept, reject, or re-mesh.