Zipped AVI animation of equivalent elastic strains of a rubber boot. Modeled with SOLID185 (fully incompressible Mixed U-P) and Neo-Hookean model with surface-to-surface contact (rigid-deformable and self-contact). Three load steps comprise of (a) initial interference fit, (b) pull down boot in -y direction, (c) rotate rigid shaft.

GIF animation of equivalent stress in rubber bushing. Use of SOLID185 with large-strain viscoelasticity (beta at 6.0) and 2-term Mooney-Rivlin. Rigid-deformable contact and self-contact. Assumes 5% relaxation; note that as the load is released, the true-stress vs. true-strain curve plotted in upper-right corner shows relaxation. A point in compression and another point in tension is plotted, and true stress-strain curve does not follow original path.

Zipped AVI file of animation of pinched cylinder. SOLID185 elements with Ogden hyperfoam model (for compressible foam-type rubbers) with viscoelasticity, relaxation to 50% for both shear and bulk moduli with different relaxation times. Contours of von Mises stress along with reaction force history animated.

Zipped AVI animation of equivalent stresses of an axisymmetric model. An o-ring is constrained in three directions by rigid walls. One of the rigid walls compresses the o-ring, then an external pressure is applied from below