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Contours the stresses tangential to the surface. These components can be accessed via the Strength Factor Components toolbar as follows:
This toolbar can be changed to a vertical orientation by dragging is against either the right or left hand edge of the main window. It can be changed back to a horizontal orientation by dragging is against either the top or bottom edge of the main window.
Selecting the
In elastic analyses, tangential stresses are not calculated unless requested. This is because they are not required for the solution process and do require addition al analysis time. This calcuation is requested by checking Analysis > Options > Calculate Tangential Stress Components. These values are calculated by default during plastic analysis.
In elastic analysis the maximum tangential stress is often referred to as the extreme fibre stress. This is useful to determine locations where the stresses exceed the unconfined compressive strength or tensile strenght of the rock mass.
The contour range is set using
This component can be added to the contour toolbar if desired
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button on the 
