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diff --git a/web/content/docs/benchmarks/small-deformations/mechanics-linear-element_deactivation.pandoc b/web/content/docs/benchmarks/small-deformations/mechanics-linear-element_deactivation.pandoc
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++++
+date = "2020-02-11T10:44:18+01:00"
+title = "Linear; Element deactivation"
+project = "Mechanics/Linear/square_with_deactivated_hole.prj"
+author = "Wenqing Wang"
+weight = 111
+
+[menu]
+  [menu.benchmarks]
+    parent = "small-deformations"
+
++++
+
+{{< data-link >}}
+
+The problem definition is exactly the same as that of [Disc with hole]({{<ref "mechanics-linear-disc-with-hole.pandoc">}}). With the element deactivation approach, the problem is solved as 2D and 3D benchmarks, respectively.
+
+The input data set of the element deactivation approach is specified inside the tag of   `<process_variable> ... </process_variable>`. For example, the following input means to deactivate the elements with MaterialIDs of 0  within a time interval from 0 to 1:
+
+```xml
+    <process_variables>
+        <process_variable>
+            ...
+            <deactivated_subdomains>
+                <deactivated_subdomain>
+                    <time_interval>
+                        <start>0</start>
+                        <end>1</end>
+                    </time_interval>
+                    <material_ids>0</material_ids>
+                </deactivated_subdomain>
+            </deactivated_subdomains>
+            ....
+        <process_variables>
+    <process_variable>
+```
+
+ The input syntax can be also found in the project files of the two benchmarks:
+
+* [2D](https://github.com/ufz/ogs/tree/master/Tests/Data/Mechanics/Linear/square_with_deactivated_hole.prj)
+* [3D](https://github.com/ufz/ogs/tree/master/Tests/Data/Mechanics/Linear/ElementDeactivation3D/element_deactivation_M_3D.prj)
+
+## Mesh
+2D and 3D meshes:
+![](../element_deactivation_2D_3D_mesh.png)
+
+## Results and evaluation
+
+2D results:
+![](../element_deactivation_2D.png)
+3D results:
+![](../element_deactivation_3D.png)
+