VON 
von Mises stress 
VONDC: von Mises [Directional Components] 
Available only for Linear Dynamic  Harmonic studies.
The solver performs the von Mises stress calculations more
accurately by taking into account the proper signs (positive or
negative) of the six stress components.
The VON: von Mises stress plot calculates von Mises stresses from the
six components of stress. The same is true for the VONDC: von
Mises [Directional Components] stress plot. However, because the
results of Linear Dynamic Harmonic studies are derived for the
maximum steadystate oscillation amplitude, the traditional
calculation method for the von Mises stress results considers
only the positive values of the stress components. Stress phase
offsets can occur when a certain stress component is positive
while another stress component is negative. The VONDC: von Mises
[Directional Components] stress plot considers the influence of
stress phase offsets. The von Mises equation dictates that the
square of the difference between a positive and a negative
stress component may be greater when compared to the difference
between positive stress component values. Therefore, the VONDC:
von Mises [Directional Components] stress values are expected to
be more conservative than the VON: von Mises stress
values.

P1 
Normal stress in the first principal
direction 
P2 
Normal stress in the second principal
direction 
P3 
Normal stress in the third principal
direction 
INT 
Stress intensity = P1  P3 ^{(a)}
with P1: maximum absolute normal stress, and P3:
minimum absolute normal stress.

TRI 
Triaxial stress = P1 + P2 + P3 (Sum of principal stress
components. Also called the first stress invariant because the value
remains the same regardless of the coordinate transformation you apply
to the stress tensor.) 
SX 
Normal stress in the Xdirection of
the selected reference geometry 
SY 
Normal stress in the Ydirection of
the selected reference geometry 
SZ 
Normal stress in the Zdirection of
the selected reference geometry 
TXY 
Shear stress in the Ydirection acting
on the plane normal to Xdirection of the selected reference
geometry For shear stress components, the first
index indicates direction of surface normal, and the second index
indicates direction of shear stress component.

TXZ 
Shear stress in the Zdirection acting
on the plane normal to Xdirection of the selected reference
geometry 
TYZ 
Shear stress in the Zdirection acting
the plane normal to Ydirection of the selected reference
geometry 
ERR 
Energy Norm Error (available for static and drop test
studies) 
CP 
Contact Pressure ^{(b)} 
ILTXZ 
Interlaminar shear on XZ plane 
ILTYZ 
Interlaminar shear on YZ plane 