The following contact and connection enhancements were made at Release 2024 R2:
Contact Enhancements
Contact Split Program Controlled Behavior Change. When the Contact Split (DMP) property (Analysis Settings > Advanced) is set to Program Controlled, the application now automatically performs contact pair splitting during the solution when the number of contact regions is less than the number of:
Cores when the Distributed option is enabled.
Or...
Processes when the Hybrid Parallel (Mechanical APDL) option is also enabled.
In prior releases the application always performed contact split when Contact Split (DMP) property was set to Program Controlled.
Rigid-To-Flexible Contact. The application no longer creates a duplicate layer of target elements (called an insulation layer) for contact regions defined between a rigid body surface and a flexible body. This optimization significantly improves solution processing performance for large assembly models.
Cylindrical Smoothing. When you set the Contact Geometry Correction or Target Geometry Correction properties to Smoothing and the Orientation property to Program Controlled, you can now select multiple cylindrical faces for the scoping of the Contact Region.
Connections Enhancements
Connections Manager. This new extension provides capabilities to automatically generate and manage connection objects for an entire model or a group of bodies within a model.