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Strain plot

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Posts: 10
Topic starter
(@hugo-s)
Student
Joined: 4 years ago
Hello everyone!
I'm visualizing the post-analysis in ls-prepost, the strains (image 1) shows the message "No state variable for element" and I can't see any deformation, however, I can see perfectly the displacement plot (image 2) using Ndv displacement tool.
 
I'm using the fringe component tool (image 3)
 
How can I visualize the strains properly?
 image
5 Replies




Negative Volume
Posts: 639
Admin
(@negativevolume)
CEO
Joined: 5 years ago

Hi @hugo-s,

Do you have *Database_extent_binary in your Keyword? You need to change STRFLG to 1 for strains to write to .d3plot and ELOUT.

https://www.dynasupport.com/howtos/element/shell-strain

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4 Replies
(@hugo-s)
Joined: 4 years ago

Student
Posts: 10

@negativevolume that worked perfectly, many thanks,

you are the best bro!

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(@hugo-s)
Joined: 4 years ago

Student
Posts: 10

Following the same idea, I also need to plot: Mx bending, Qz shear etc, and I have the same problem because there is No state variable for element, I suppose that I need another extent_binary like the previous one since it worked correctly for strains, but in the case of Mx, Qx etc. I don't know which one to use.

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Negative Volume
Admin
(@negativevolume)
Joined: 5 years ago

CEO
Posts: 639

@hugo-s You can only have 1 *Database_extent_binary card per simulation, so you just need to change the parameters to activate whatever you need. A tip for this, when you open any keywords in LS-PrePost you can click on each parameter and it will give you a description of what that parameter will toggle. You may be restricted by something in your model, like the material or the section that isn't allowing you to look at these results. Tough to say. You said that you need to plot it? As in like these heat map fringe plots or like a time history plot?

 

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(@hugo-s)
Joined: 4 years ago

Student
Posts: 10

@negativevolume Hi, thank you for your comments, in first instance I will need the heat map fringe plots, after that I know that in order to get time history plots I have to set up the sensors previously. But a first sight of the fringe plots like you mentioned in the previous response (extent_binary) is a good way to do this, I would like to know how to get fringe plots of Mx, Qx, etc.

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