Hello all,
I am doing a compression test on a cylinder using two rigid dies and I would like to get the load displacement curves, all am able to get is force for the die which is considered as load and for the displacement what should i consider?
can the Z directional displacement taken in to consideration if not what should I count on which will help me to get the stress strain curves from the Load & displacement.
2 Solutions depending how compression is measured in a real experiment your simualtion is validated against.
When the compression is calculated based on the stroke of the and the substage automatic positioning of dies attached to press is used the stroke can easily be plotted of the press force/ z force of the attached die.
When the compression is measured with a strain gauge between two points on the material surface: Create two post particles at those points and evaluate the post particles:
the difference between the values relative to the initial length of the specimen is your compression strain over time which can be set in relation to the compression force, but this postprocessing needs to be done in excel.
The second solution can be more accurate, but the first one can quickly be generated in Simufact Forming. Please remember that the result are technical stresses and strains.
You can also consider the Z directional displacement in the THS plot of the moving die to get the displacement for the load displacement curve.
But the 1st option shown by Max above is much nicer. The THS plot force vs. stroke should be what you need. Just consider that positioning and release may be included in the stroke.
