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X Y plot

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alaska12345

Civil/Environmental
Dec 8, 2011
9
Hi,

I have made a simple model of steel seet with solid elements. U can see pictures below. The model is subjected just to tensile load from one side (concentrated force at reference point). I use Static General ON.

What i need to get? For example the specimen is loaded with force 230kN. I want to make any graph or a table with data which show me max stresses at every of two lines (look at pictures!) when the force was 10kN, 50kN, 80kN, 170kN and 230kN. Stresses at lines should be taken just from surface area.

How i can do it? Using path? But how to create a graph or table?
F. ex.
-X axis: increasing concentrated force (from 10kN till 230kN)
-Y axis: max from stresses at line 1 and the same for line 2.

Please, give me some clues.
Thank You on advanced!

Aga

 
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get output CF and S (done by default)
create a nodeset for the lines you want

create xy data: field output for: CF at the node you are loading
S at nodeset lines1 and lines2

then use "operate on field output" and use
1. the maxenvelope operator to get the max
2. combine(CF,maxenvelope(S)) to get S vs Force.
and repeat for line2.

If your loading is constant and your system is linear elastic with nlgeom=off, it will always be the same node with the maximum though.
Doublecheck that the nodal stress values are close to the gauss points values, or overlay your structure with membrane elements to get accurate surface stress
 
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