\n This operation allows duplicating mesh nodes or/and elements, which can be useful to emulate a crack in the model.
-Duplication consists in creation of mesh element "equal" to existing ones.
+Duplication consists in creation of mesh elements "equal" to existing ones.
<em>To duplicate nodes or/and elements:</em>
<ol>
<br>
\image html duplicate_nodes.png "Duplicate Nodes or/and Elements button"
</li>
-<li>Check in the dialog box one of three radio buttons corresponding to
+<li>Check in the dialog box one of four radio buttons corresponding to
the type of duplication operation you would like to perform.</li>
<li>Fill the other fields available in the dialog box (depending on
the chosen operation mode).</li>
operation of duplication.</li>
</ol>
-\n "Duplicate Nodes or/and Elements" dialog has three working modes:
+\n "Duplicate Nodes or/and Elements" dialog has four working modes:
<ul>
<li>\ref mode_without_elem_anchor "Duplicate nodes only"</li>
<li>\ref mode_with_elem_anchor "Duplicate nodes and border elements"</li>
<li>\ref mode_elem_only_anchor "Duplicate elements only"</li>
+<li>\ref mode_group_boundary_anchor "Duplicate nodes on group boundaries"</li>
</ul>
<br>
<h2>Duplicate elements only</h2>
This mode duplicates the given elements, i.e. creates new elements with the same nodes as the given elements.
+<br>
+
+\image html duplicate03.png
+
+Parameters to be defined in this mode:
+<ul>
+ <li><b>Group of elements to duplicate</b> (<em>mandatory</em>): these
+ elements will be duplicated.</li>
+ <li><b>Construct group with newly created elements</b> option
+ (<em>checked by default</em>): if checked - the group of newly created
+ elements will be built. The name of the created group starts from
+ "DoubleElements".</li>
+</ul>
<br>
+\anchor mode_group_boundary_anchor
+<h2>Duplicate nodes on group boundaries</h2>
+This mode duplicates nodes located on boundaries between given groups of volumes.
-\image html duplicate03.png
+<br>
+\image html duplicate04.png
+
+Parameters to be defined in this mode:
<ul>
-<li><b>Group of elements to duplicate</b> (<em>mandatory</em>): these
- elements will be duplicated.</li>
-<li><b>Construct group with newly created elements</b> option
- (<em>checked by default</em>): if checked - the group of newly created
- elements will be built. The name of the created group starts from
- "DoubleElements".</li>
+ <li><b>Groups (faces or volumes) </b> (<em>mandatory</em>): list of mesh
+ groups. These groups should be disjoint, i.e. should not have shared
+ elements.</li>
+ <li> If <b>Create joint elements</b> option is activated, flat
+ elements are created on the duplicated nodes: a triangular facet
+ shared by two volumes of two groups generates a flat prism, a
+ quadrangular facet generates a flat hexahedron.
+ Correspondingly 2D joint elements (null area faces) are generated
+ where edges are shared by two faces.
+ <br>
+ The created flat volumes (or faces) are stored in groups. These groups are named
+ according to the position of the group in the list of groups: group
+ "j_n_p" is a group of flat elements that are built between the group \#n
+ and the group \#p in the group list. All flat elements are gathered
+ into the group named "joints3D" (correspondingly "joints2D"). The flat elements of multiple
+ junctions between the simple junction are stored in a group named
+ "jointsMultiples".</li>
+ <li> If <b>On all boundaries</b> option is activated, the volumes (or faces),
+ which are not included into <b>Groups</b> input, are considered
+ as another group and thus the nodes on the boundary
+ between <b>Groups</b> and the remaining mesh are also
+ duplicated.</li>
</ul>
<br><b>See Also</b> a sample TUI Script of a
