I already posted a part of my problem some weeks ago. Since the first issues are solved, I have a problem with large strains in my model.
I simulate two hyperelastic layers that lay one on the top of the other. The two layers are made out of two different materials, both hyperelastic. I use mooney rivlin with two parameters.
On the bottom of the layers there are several rigid bodies that move into the layers. From above a surface load on the upper layer is pushing. Figuratively the two layers are pinched due to the rigid bodies and the the surface load.
The rigid bodies move in 30 steps a total distace of 3mm. The layers are fixed on the edges. For a total distance of 3mm the simulation works. When I change this distance to 4mm, the simulation does not converge anymore, even with 50 load steps.
Do you have any suggestions what to change? ("large deformations" is on)
The attached picture shows the force convergence of my simulation. Everything looks fine until a certain load is exceeded.
I use Ansys Workbench 13
Thanks in advance!