The Stress, Mises-Hencky result shows the Mises-Hencky stress (maximum normal stress) in the part (Warp or Stress analysis), or in the wire or paddle (Microchip Encapsulation analysis), at the selected layer through the cross-section, in the deformed state after ejection has occurred.
Note This result is only available if you have selected an appropriate option in the drop-down menu in the .
Using this result
Use this result when the material is ductile. Consider the areas with a high level of stress and compare the results against the relevant material criteria.
Note that the plot corresponds to one particular position through the cross-section, as specified by a normalized thickness value where -1 is the bottom of the element, 0 is the centerline through the element, and +1 is the top of the element.
The normalized thickness value can be viewed or modified on the Animation tab of the Plot Properties dialog.
Note Due to the extrapolation from elemental centroids to the edges of elements, it is possible for small negative values to be generated for this result (Mises-Hencky stress values must, by definition, be positive). These small negative values should be taken to equal zero.
Things to look for
- Always use the maximum value of stress (either top or bottom) when checking to see if the part will fail.