I want to plot graph of stress vs strain, stain vs time for specific area of my geometry which I have attached. I can plot stress strain by selecting one node by
Result --> History Output.
In the History Output dialog box Select Stress : S22 at Element e-g element 9 from the list Output Variable.
Click on Plot in the original dialog box.
Repeat these steps for the Output Variable with the description Strain : E22 at Element 9 Int Pt 1. Save this as yStrs-9.
My question is to how we can plot graph for selecting a specific area and then plot plastic strain or shear strain vs time, stress vs strain for all nodes for that specific area.
Kindly reply me.
You can do result-> field out put and then select all elements or nodes you want to plot.
If you want to plot stress-strain relation (for a single node), then
plot both stress and strain vs time then in XY-data Manager-Create - choose Operate... then find Combine, then put strain as the first operand, then comma, then stress as second operand, then press Save as or Plot. voi la
However, if you need such plots for a large number of nodes, I can only suggest writing a script.
In abaqus ,you can also plot stress-strain curve through MS excel, Follow these steps-Click on Plug-ins( top of Abaqus window) then tools ,after that excel utilities .A window will open ,from there you can select stress vs time and strain vs time plot or whatever you want. after selecting data directly reached to MS excel ,from there easily plot it.
Dear Shahriyar and Sergey Kuznetsov
For stress strain curve i can easily plot wrt time for one node and from Operate XY data I can combine stress strain to get stress vs strain graph but it is for one node. Is it possible to get average for stress vs strain and Shear strain average E12 E23 PE12 PE23 vs time for specific area which I have mentioned above.
I have tried to make set of Element Nodes for this area and plot it stress strain or Shear strains VS time and then select operate on XY data to get average of Shear strain (one line ) VS time or combine stress strain to get a single plot for stress vs strain.
But if I make a set of Nodes for this specific area and then select Unique Nodals to plot for this specific set. Abaqus make a graph for this set vs Time but when I try to get average (one line) for Shear strain VS time from Operate on XY data and take the avg (A,A....) after selecting all nodes. It shoes an error.
What is the possible way for this. And what is difference between Unique Nodals and Element Nodes ?
Secondly is it Possible to make a report file for displacements U1 U2 U3 for the specific area which I have marked with white colour in attached picture.
I tried to make report file by making set of Nodes but could not produce a report file for displacements for specific area.
Kindly suggest me a solution and correct me if I am wrong any where please.
Thank you very much all of you who answered my question.
I'll try to answer several of your questions
1) Function avg(()) works with averaging over different quantities at the same time, e.g. if you have Plot1(t) and Plot(2), then their averaging will be Plot3(t)=Plot1(t) + Plot2(t). This function works, I checked it.
2) If you need averaging in time, then use median filtering. In Abaqus such a filter is called Smoothing (it is placed where avg(()) function is placed. Apply Smooth(X,I), where X is the plot, and I is number of adjacent smoothing points. For averaging (smoothing) along whole time interval, use I equal to number of all frames.
3)Unique nodal is referred to nodal points obtained from geometry, while Element nodes are referred to nodes of the elements. If geometry nodes are associeted with element nodes (that is the common case), then both are idential.
4) I used to make reports for displacements and other quanities for relatively large number of points, and never got any problems (check page width No limit in Report-XY Data - Setup)
Good luck
Before submit, you can create set of geometry and then select the specific area and create history output requests and then select the area based on the previous set you want to plot.
Dear ABAQUS communities i am doing the foundation analysis to find bearing capacity of shallow foundations, Model ha been completed but i have got no idea to plot the graph between normalised settlement vs bearing capacity of footing. thanks in advance
Using combine function you can create the two XY data. Go to XY data>odb field output. Select stresses and strains for a node/element. Then close the window. Press again create XY data>operate on XY data> combine>add the 2 variables in the function and that's all.
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