2d elastic 3 in ansys 15 install#

The stretch step simply resolves the contact set between the groove and the O-ring, and no boundary conditions or loads are applied.

2d elastic 3 in ansys 15 install#

The simulation is performed in three steps: 1) stretch the O-ring into the gland, 2) install the piston to squeeze the O-ring, and 3) apply the pressure. It is important to specify a coefficient of friction for these contact sets to help the solution converge. All of these components (as well as O-rings) are comprised of elastomeric compounds, which is a class of materials that can withstand tremendous strain (often greater than 100%) without breaking.Д¬ontact sets were created between the O-ring and the groove, and the O-ring and the piston.

This type of study is useful for analyzing more complicated designs like metal spring-energized (MSE) seals, vee-packing, wipers, and bellows. So, consider the text that follows more of an introduction to setting up a hyperelastic FEA study. That is exactly what we did to generate the plots in the video starting at 2:20. You could use Figures 2-4 through 2-8 in the Parker O-Ring Handbook to determine the compression force per unit length for your particular cross section, hardness, and squeeze, and then just apply this force to each of the components directly. If you were designing an enclosure with a face seal, and wanted to determine the deformations in the mating halves due to the O-ring compression force, you wouldnвЂ™t need to simulate the O-ring. For example, we mention in the video that face seals require quite a bit of clamping force to compress evenly.

There is quite a bit of empirical data available that will allow you to avoid having to simulate the O-ring itself. Before diving into the details, itвЂ™s important to mention that there actually arenвЂ™t a lot of cases that justify a full-blown hyperelastic FEA of an O-ring.