LUSAS User Area
Typical message from LUSAS Modeller text output pane: 
Plastic strains not available or active
set has different material properties. Change active set 
           
					  To obtain plastic strains it is necessary 
					  to only select those elements that have the plastic material 
					  assigned to them. To do this... 
					
					  - Load the results
                        (*.MYS) file on top of 
						the model (*.MDL) file
 
					  - Go to the TreeView Layers tab.  Check that
                        Geometry and Mesh 
						layers are both visible (listed in the TreeView). 
                        If they are not, add the layers using the menu item:
 
                        View > Insert layer 
					  - Go to the TreeView Loadcase tab.  Right-click 
						on any "model data" loadcase (rather than a "result runs" loadcase)
                        and choose "set active"
 
					  - Go to the TreeView Attribute tab.  Right-click 
						on the appropriate plastic material model and choose "select 
						user"
 
					  - Create a group of only these elements, using the menu
                        item:
 
                        Geometry > Group > New group   
					  - Go to the TreeView Groups tab.  Right-click 
						on the group that has just been created and choose "set
                        as only invisible"
 
					 
                    You should then be able to plot the plastic strains as 
						required. 
                      
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