User Area > Advice
Why do I obtain different stress results when using "values" and
"diagrams" at a node?
There are two principal reasons for this:
a) The "values" layer displays
nodal values on the screen. for stress/strain results these
values will be the averaged values from each of the adjacent
elements. Labelling diagrams actually gives the element
values - hence more than one label is obtained at a node
that is connected to other elements.
b) The element axes for Engineering beams
(particularly) will make a difference to the sign of the
stress/strain obtain when using "value" layer
to display results. It is possible to have a zero stress
output at a node, therefore if the nodal values are equal,
but opposite in sign. If the local beam element x-axes are
opposite to each other, this may be changed by reversing
the line direction (Geometry>Line>Reverse...)
|