Force vs Displacement Plot
Force vs Displacement Plot
(OP)
I performed a tensile test with dog-bone specimen. The true stress and strain plot is quite good with experiment. I want to plot graphic of history of Force vs Displacement to compare with experiment.
How can i do this?
I tried to plot RT (or RF ) Vs U (UT) in ODB Field Output but the force is always zero at center of specimen.
Regards
How can i do this?
I tried to plot RT (or RF ) Vs U (UT) in ODB Field Output but the force is always zero at center of specimen.
Regards





RE: Force vs Displacement Plot
Gurmeet
RE: Force vs Displacement Plot
RE: Force vs Displacement Plot
What do you mean Sum the reaction force?
Thanks
RE: Force vs Displacement Plot
In order to sum, first you have to retrieve the values of nodal reactions. To do this:
1. Go to tools>x-y data> create>odb field output > continue to x-y data from odb field output> set position to unique nodal>click on required component of RF> click elements/nodes tab> click pick from viewport>click edit selection> pick the desired nodes in graphic view> click done and then save.
2. Go to tools>x-y data> create> operate on x-y data> pick the SUM() operator> select the nodes from the table>add>save
First step will write the x-y data to a table and save it. The second step will add all the reactions and save the Reactions for each converged iteration in a table. Now you can view the reactions as well as plot them.
Gurmeet
RE: Force vs Displacement Plot
The modulus of elasticity units are Pa, the model should be in mm, I guess what I am seeing is microNewtons, which really does not makes sense to me...
If necessary I can provide abaqus file so you can take a look,
how do you add to the x axis the displacement to the plot?
thanks
RE: Force vs Displacement Plot
RE: Force vs Displacement Plot
Following your guides, the graphic showed a shape corresponding well with experiments but its max value (3500N) is higher two times than the experiment(1700N).
The specimen is meshed into 2 layers, 16 elements in width. So, I have 51 nodes in cross section at the fixed end. I selected 51 nodes and results as above. This results is for two layers? Do I need to divide to 2 ?
Thank for your reply.
Regards