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surface load visualization

surface load visualization

surface load visualization

(OP)
Dear all,
in the step 1 of an analysis I apply just the gravity load on a structure.
Then, in the step 2 I apply a distributed load on beams with the SFBEAM command. The value is, let's say, 10.
In the step 3, I bring this value with SFCUM and SFBEAM to 20.
In the postprocessing with /PSF, I can only visualize the load with the value of 20 which remain fixed even in the steps 1 and 2.
On the contrary, if I use the element table, all the values are ok, but I can display only the contour plot and not the vector.
Can you help me?

andrea

-------------------------------------------
 Andrea Mordini, Civil Engineer, Ph.D.           
 http://www.andreamordini.com                          
-------------------------------------------

RE: surface load visualization

Andrea,
Try this:

ESEL               !select elements of interest
NSLE
/PSF,PRES,NORM,2,0,1        !plot pressure normal...change Comp entry if something different is required for display
/PBC,ALL,,1
/REP

Surface forces are only plotted at where they are applied.  So if you're beam is comprised only of a single element (ie. 2 nodes) you will only see arrows at the extreme ends of the beam.

Hope this helps,
-Brian

RE: surface load visualization

(OP)
This is actually what I have already done.
But in this way I can visualize only the pressure defined in the last step of the analysis !!!

andrea

-------------------------------------------
 Andrea Mordini, Civil Engineer, Ph.D.           
 http://www.andreamordini.com                          
-------------------------------------------

RE: surface load visualization

Hi,
there may be a problem with your use of SET or LCASE (see help file in 5.4.3.1, "Notes"). Can you add some info about how you shift from one loadstep result to another?

Regards

RE: surface load visualization

(OP)
I do it in two different ways:
with the GUI, general postprocessor->read results or simply with the command SET, NEXT or SET, PREVIOUS.
In both the cases it does not work.

andrea

-------------------------------------------
 Andrea Mordini, Civil Engineer, Ph.D.           
 http://www.andreamordini.com                          
-------------------------------------------

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