How to plot stress-strain for the whole model.

[Chen1]

I know how can to plot the stress strain curve for one element. However i need to plot the strain strain curve for the whole model.

Thanks

 

[burningDiesel]

you mean you want to plot all the curves? or you want to plot the average over all elements or something?
For the latter, there is "operate on xy data"

 

[Chen1]

Hello Sdebock.

I think i need the average stress-strain curve, because i want to compare the stress strain curve from Abaqus with the actual stress strain curve from the laboratory test results.

I know that i need to use operate on XY data, then what? shall i use Average () function, or use the sum ()?

thanks alot

 

[burningDiesel]

Well the curve will be the curve you input at the material definition? Each element will just be at a different location on that curve.
Probably what you mean is that you want to get the reaction forces (RF), divide those by the area, and check the displacements (U) and divide those be the L0 to get stretch values.

 

[Chen1]

Thanks again Sdebock

I am working on rock samples, I have the stress-strain curve from uni-axial compression test from lab. test. Then i used Abaqus to simulate that uni-axial compression test. i need to compare the stress strain curve from Abaqus for the whole rock sample (whole model) with that form the lab test results. in other words, i need to get one stress-strain curve from Abaqus which represent the whole model, then i can compare that curve with the experimental curve.

I think i need to use the function Average ( ) to get an average for the stress and the stain in all elements, please correct me if i am wrong.

Thank you so much.