Geometry Corrections for Surfaces in Contact

Simulations for linear static studies are more accurate for curved surfaces that come into contact.

The contact detection algorithm integrates geometry correction factors that improve the representation of curved surfaces of cylindrical, spherical, and conical geometries.

The image above shows one-quarter of a cylindrical model with a spherical cavity. The two parts mesh independently. A pressure load is applied at the top of the spherical cavity. During simulation, contact forces develop at the spherical boundaries. The stress gradient plot shown at the right represents accurately the contact behavior.

Another example where results are improved for SOLIDWORKS Simulation 2021 because of the integration of geometry correction factors in contact simulation is shown below.
Two cylindrical bodies come into contact under a pressure load. The bodies mesh independently. The inner body has a draft-quality mesh with a higher mesh density. The outer body has a high-quality mesh with a lower mesh density.
With the integration of geometry corrections, the deformation contour plot is accurate (SOLIDWORKS Simulation 2021).
Inaccurate deformation contour plot (SOLIDWORKS Simulation 2020).