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How does ANSYS calculate stress along a defined path

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Old   July 12, 2012, 18:05
Default How does ANSYS calculate stress along a defined path
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I am trying to do a Boundary condition check on my structure.

I am analyzing shear/normal stress on the middle fiber at the center of the structure.(5th row from top or bottom at the center)

I defined a path along the left edge of the middle fiber, just bordering the gap, and mapped shear stress onto it. However, when I plot the graph, I do not get ZERO shear along that edge as expected. Am just wondering how ANSYS is calculating the stress and how it is interpolated.
I have attached some graphs. Any help would be greatly appreciated.

Attached Images
File Type: jpg Fiber Structure.jpg (28.3 KB, 2 views)
File Type: jpg Shear stress along left edge.jpg (46.1 KB, 2 views)
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